Coffee Drinking May Halve Risk Of Mouth And Throat Cancer

 

Coffee Drinking May Halve

Risk Of Mouth And Throat Cancer

A new study from the US finds people who drink more than 4 cups of caffeinated coffee a day have half the risk of dying from oral/pharyngeal (mouth and throat) cancer as people who drink it either occasionally or not at all. However, the researchers say their findings need to be confirmed by more research, and for now should just be received as good news for coffee drinkers and not be used as a reason to recommend everyone should drink 4 cups of coffee a day.

Lead author Janet Hildebrand and colleagues from the American Cancer Society (ACS) in Atlanta, Georgia, write about their findings in a paper published online first on 9 December in the American Journal of Epidemiology.

Oral/Pharyngeal Cancer

Oral/pharyngeal or mouth and throat cancer is rarely diagnosed in the early stages because symptoms usually do not appear until the cancer is advanced. Also, the symptoms can be mistaken for something else, such as toothache.

The cancer can sometimes be spotted early during a routine exam by a doctor, dentist, or dental hygienist, and some dentists and doctors suggest you look at your mouth in a mirror at least once a month to check for symptoms.

The most common symptoms are a mouth sore that fails to heal, or a pain in the mouth that doesn't go away.

The biggest risks for developing oral/pharyngeal cancer are tobacco and alcohol use. Most people who have it are tobacco users.

Infection with the human papillomavirus (HPV) is also a risk factor, especially in people who do not use tobacco. The number of cases of oral/pharyngeal cancer tied to HPV has risen sharply in the last thirty years.

Researchers Examine Link with Coffee

Previous epidemiological studies have suggested coffee drinking is linked to a reduced risk for mouth and throat cancer.

It has also been suggested that it may not be the caffeine in coffee, but the fact it is rich in antioxidants, polyphenols, and other compounds, that help prevent or slow the development of cancer.

For their study, Hildebrand and colleagues used data from the Cancer Prevention Study II, a prospective US cohort study that the ACS started in 1982.

That study gathered a wealth of lifestyle and health information on 968,432 men and women, including their tea and coffee consumption. When they enrolled on the study, none of the participants had cancer, but over the 26 years of follow up, 868 died from oral/pharyngeal cancer.

When they analyzed the tea and coffee consumption in relation to deaths from oral/pharyngeal cancer, the researchers found those participants who reported drinking more than 4 cups of caffeinated coffee a day had a 49% lower risk of death from oral/pharyngeal cancer compared to those who reported not drinking coffee at all or only an occasional cup.

The link was not affected by gender, tobacco and alcohol use.

The researchers found an insignificant link with decaffeinated coffee, and none at all with tea.

Conclusion and Next Step

The researchers conclude:

"In this large prospective study, caffeinated coffee intake was inversely associated with oral/pharyngeal cancer mortality. Research is needed to elucidate biologic mechanisms whereby coffee might help to protect against these often fatal cancers."

Hildebrand says in a press statement:

"We are not recommending people all drink 4 cups of coffee a day. This is just a little bit of good news for those of us who enjoy coffee."

"There may be some other effects of coffee that may prevent people with certain conditions from drinking a lot of caffeine," she cautions, noting that:

"This study is about just one cancer site among many. There needs to be much more consistent research before we can support the conclusion that coffee should be consumed for cancer prevention."

The team is now planning to analyze links between coffee consumption and cancer in a more diverse population in the ACS's new Cancer Prevention Study - 3 (CPS-3).

The Society hopes to recruit at least 300,000 adults from a range of ethnic and racial backgrounds across the US to take part in CPS-3, which aims to increase knowledge of how to prevent cancer.

There has been a lot of debate recently about the benefits and harms of coffee drinking, with more recent news suggesting the benefits probably outweigh the harms.

But researchers spreading the good news are all saying the same thing, as Hildebrand and colleagues themselves point out in this latest study: while there appear to be some health perks from drinking coffee, there are also a few cautions, and the evidence is not solid enough to actively encourage people to go out and drink coffee.

Written by Catharine Paddock PhD
Copyright: Medical News Today
Not to be reproduced without permission of Medical News Today

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Good News

posted by Lynne on 13 Dec 2012 at 12:11 am Another good benefits from drinking coffee. Now a days teens are beginning to drink coffee and tea for health reason. If this is the case,the percentage of people died from cancer will surely decrease.
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How Many Calories Should I Eat?

The number of calories people should eat each day depends on several factors, including their age, size, height, sex, lifestyle, and overall general health. A physically active 6ft 2in male, aged 22 years, requires considerably more calories than a 5ft 2ins sedentary woman in her 70s.           

Recommended daily calorie intakes also vary across the world. According to the National Health Service (NHS), UK, the average male adult needs approximately 2,500 calories per day to keep his weight constant, while the average adult female needs 2,000. US authorities recommend 2,700 calories per day for men and 2,200 for women. It is interesting that in the UK, where people on average are taller than Americans, the recommended daily intake of calories is lower. Rates of overweight and obesity among both adults and children in the USA are considerably higher than in the United Kingdom.

The NHS stresses that rather than precisely counting numbers (calories), people should focus more on eating a healthy and well balanced diet, being physically active, and roughly balancing how many calories are consumed with the numbers burnt off each day.     

According to the United Nation's Food and Agriculture Organization (FAO), the average person's minimum calorie requirement per day globally is approximately 1,800 kilocalories.

Daily calorie consumption varies considerably around the world (countries in gray indicates "no data available")

What is the difference between calories and kilocalories?

Scientifically speaking, one kilocalorie is 1,000 calories. However, the term calorie in lay English has become so loosely used with the same meaning as kilocalorie, that the two terms have virtually merged. In other words, in most cases, a calorie and kilocalorie have the same meaning.

A kilocalorie is the amount of energy required to raise the temperature of 1 kilogram of water from 15° to 16° Celsius (centigrade) at one atmosphere.

A "small calorie" refers to the traditional scientific term of calorie, meaning one-thousandth of a kilocalorie.

Internationally, most nations talk about food energy in kJ (kilojoules). 1 kcal (kilocalorie) = 4.184 kJ.

In this article, the term "calorie" means the same as "kilocalorie" or "kcal".

Portion sizes

In industrialized nations and a growing number of emerging economies, people are consuming many more calories than they used to. Portion sizes in restaurants, both fast food ones as well as elegant places, are far greater today.


The average cheeseburger in the USA 20 years ago had 333 calories, compared to the ones today with over 600 calories

The human body and energy usage

For the human body to remain alive, it requires energy. Approximately 20% of the energy we use is for brain metabolism. The majority of the rest of the body's energy requirements are taken up for the basal metabolic requirements - the energy we need when in a resting state, for functions such as the circulation of the blood and breathing.

If our environment is cold, our metabolism increases to produce more heat to maintain a constant body temperature. When we are in a warm environment, we require less energy.

We also require mechanical energy for our skeletal muscles for posture and moving around.

Respiration, or specifically cellular respiration refers to the metabolic process by which an organism gets energy by reacting oxygen with glucose to produce carbon dioxide, water and ATP energy. How efficiently energy from respiration converts into physical (mechanical) power depends on the type of food eaten, as well as what type of physical energy is used - whether muscles are used aerobically or anaerobically.

Put simply - we need calories to stay alive, even if we are not moving, and need calories to keep our posture and to move about.

How many calories do I need per day?

The Harris-Benedict equation, also known as the Harris-Benedict principle, is used to estimate what a person's BMR (basal metabolic rate) and daily requirements are. The person's BMR total is multiplied by another number which represents their level of physical activity. The resulting number is that person's recommended daily calorie intake in order to keep their body weight where it is.

This equation has limitations. It does not take into account varying levels of muscle mass to fat mass ratios - a very muscular person needs more calories, even when resting.

How to calculate your BMR

• Male adults
  66.5 + (13.75 x kg body weight) + (5.003 x height in cm) - (6.755 x age) = BMR
  66 + ( 6.23 x pounds body weight) + ( 12.7 x height in inches ) - ( 6.76 x age) = BMR


• Female adults
  55.1 + (9.563 x kg body weight) + (1.850 x height in cm) - (4.676 x age) = BMR
  655 + (4.35 x kg body weight) + (4.7 x height in inches) - (4.7 x age) = BMR

You can use our BMR calculator below to work out your BMR.

BMR calculator

1) Metric Calculator

Gender:
Age (in years):
Height: (in cm, e.g: 183)
Weight: (in kg, e.g: 63)

2) Imperial Calculator

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Applying levels of physical activity to the equation

• Sedentary lifestyle - if you do very little or no exercise at all
  Your daily calorie requirements are BMR x 1.2


• Slightly active lifestyle - light exercise between once and three times per week
  Your daily calorie requirements are BMR x 1.375


• Moderately active lifestyle - if you do moderate exercise three to five days per week
  Your daily calorie requirements are BMR x 1.55


• Active lifestyle - if you do intensive/heavy exercise six to seven times per week
  Your daily calorie requirements are BMR x 1.725


• Very active lifestyle - if you do very heavy/intensive exercise twice a day (extra heavy workouts)
  Your daily calorie requirements are BMR x 1.9

How much should I weigh?

As with how many calories you should consume each day, your ideal body weight depends on several factors, including your age, sex, bone density, muscle-fat ratio, and height.

• BMI (Body Mass Index) - some say BMI is a good way of working out what you should weigh. However, BMI does not take into account muscle mass. A 100-metre Olympic champion weighing 200 pounds (about 91 kilograms), who is 6 feet (about 1mt 83cm) tall, who has the same BMI as a couch potato of the same height, is not overweight, while the couch potato is overweight.


• Waist-hip ratio - this measurement is said to be more accurate at determining what your ideal weight should be, compared to BMI. However, waist-hip ratio does not properly measure an individual's total body fat percentage (muscle-to-fat ratio), and is also limited.


• Waist-to-height ratio - this new way of determining ideal body weight is probably the most accurate one available today. It was presented by Dr. Margaret Ashwell, ex-science director of the British Nutrition Foundation, and team at the 19th Congress on Obesity in Lyon, France, on 12th May, 2012. It is also a very simple calculation; easy for lay people to work out.

Dr. Ashwell's team found that:

"Keeping your waist circumference to less than half your height can help increase life expectancy for every person in the world."

Put simply, to achieve and/or maintain your ideal body weight:

"Keep your waist circumference to less than half your height."

If you are a 6ft (183cm) tall adult male, your waist should not exceed 36 inches (91 cm).
If you are a 5ft 4 inches (163 cm) tall adult female, your waist should not exceed 32 inches (81 cm)

How do I measure my waist? - according to the World Health Organization (WHO), you should place the tape-measure half-way between the lower rib and the iliac crest (the the pelvic bone at the hip).

Not all calories are the same, not all diets are the same

Simply counting calories, and ignoring what you put in your mouth might not lead to good health. Insulin levels will rise significantly more after consuming carbohydrates than after eating fats (no rise at all) or protein. Some carbohydrates, also known as carbs, get into the bloodstream in the form of sugar (glucose) much faster than others. Refined flour is a fast carb, while coarse oatmeal is slow. Slow-release carbs are better for body weight control and overall health than fast carbs.

A 500-calorie meal of fish/meat, salad, and some olive oil, followed by fruit, is much better for your health and will keep you from being hungry for longer than a 500-calorie snack of popcorn with butter or toffee.


Taking 500 calories from this dish is much better for the health, preventing hunger, and maintaining a healthy body weight than the equivalent calories in popcorn with butter or toffee

There are several diets today which claim to help people lose or maintain their body weight. Some of them have been extremely successful and good for participants, but are notoriously difficult to adhere to long-term.

The "Eight Most Popular Diets", according to how many articles mentioned them favorably, how popular they were generally, and which ones we received the most positive feedbacks on, include:

• The Atkins Diet
• The Zone Diet
• Vegetarianism
• Veganism
• Weight Watchers
• The South Beach Diet
• The Raw Food Diet
• The Mediterranean Diet

Top 10 Healthy Foods

What Are The Top 10 Healthy Foods?

 

Imagine a selection of foods that were delicious, nutritious and good for you - i.e. they reduced your risk of developing diseases. According to several different surveys and sources in North America and Western Europe, the following ten foods are generally considered to be the most healthy.

1) Apples

Apples are an excellent source of antioxidants, which combat free radicals, damaging substances generated in the body that cause undesirable changes and are involved in the aging process and some diseases.       

Some animal studies have found that an antioxidant found in apples (polyphenols) might extend lifespans. Tests on fruit flies found that polyphenols also help them to preserve their ability to walk, climb and move about.

Another study found that adult females who regularly ate apples had a 13% to 22% lower risk of developing heart disease.           


"An apple a day keeps the doctor away" is not just an old expression that rhymes

A recent article on the health benefits of apples:  
"An Apple A Day Keeps The Grim Reaper Away"

 

2) Almonds

 

Almonds are rich in nutrients, including iron, calcium, vitamin E, fiber, riboflavin, and magnesium. A scientific review published in Nutrition Reviews last year found that almonds as a food may help maintain healthy cholesterol levels. The authors wrote:          

"The message that almonds, in and of themselves, are a heart-healthy snack should be emphasized to consumers. Moreover, when almonds are incorporated into a healthy, balanced diet, the benefits are even greater."

The fatty acid profile of almonds, which is made up of 91-94% unsaturated fatty acids, may partly explain why it helps maintain healthy cholesterol levels. Almonds also have the highest fiber content of any tree nut.  


Almonds have more fiber than any other tree nut 

A recent article on the health benefits of almonds:
"Research Review Suggests Almonds Contain Nutrients That Provide Cardioprotective Effects"

 

3) Broccoli

 

Broccoli is rich in fiber, folate, potassium, calcium and phytonutrients. Phytonutrients are compounds which reduce the risk of developing heart disease, diabetes and some cancers. Broccoli also contains beta-carotene, an antioxidant, as well as vitamin C.     


Boiling broccoli for too long can destroy much of its vital nutrients

If the enzyme myrosinase is not destroyed during cooking, broccoli can also reduce the risk of developing cancer. The best way to cook broccoli and to preserve the myrosinase is to steam the vegetable lightly - if it is overcooked, and the vegetable's beneficial effects can be seriously undermined, researchers from the University of Illinois wrote in the peer-reviewed journal Nutrition and Cancer.      

The researchers said that adding broccoli to a meal can often double its anticancer properties. 

Another ingredient, sulforphane, which exists in broccoli, is also said to have anti-cancer as well as anti-inflammatory qualities. However, overcooking can destroy most of the benefits.      

Broccoli powder does not contain myrosinase.       

A recent article on the health benefits of broccoli:           
"Lightly Steamed Broccoli Has Powerful Anticancer Enzyme Myrosinase"

 

4) Blueberries

 

Blueberries are rich in phytonutrients, antioxidants and fiber.      

According to a study carried out at Harvard Medical School, elderly people who eat plenty of blueberries (and strawberries) are less likely to suffer from cognitive decline, compared to other people of their age who do not. (Link to article)

Blueberries were found in another study carried out by scientists at Texas Woman's University, to help in curbing obesity. Plant polyphenols, which are abundant in blueberries, have been shown to reduce the development of fat cells (adipogenesis), while inducing the breakdown of lipids and fat (lipolysis). (Link to article)    


Blueberries may help in controlling body weight    

Regular blueberry consumption can reduce the risk of suffering from hypertension (high blood pressure) by 10%, because of the berry's bioactive compounds, anthocyanins, scientists from East Anglia University, England, and Harvard University, USA reported in the American Journal of Nutrition. (Link to article)

Blueberry consumption has also been associated with a lower risk of artery hardening, and/or intestinal diseases. The fruit has also been linked to stronger bones in animal studies. 

5) Oily fish

 

Examples of oily fish include salmon, trout, mackerel, herring, sardines and anchovies. These types of fish have oil in their tissues and around the gut. Their lean fillets contain up to 30% oil, specifically, omega-3 fatty acids. These oils are known to provide benefits for the heart, as well as the nervous system. Oily fish are also known to provide benefits for patients with inflammatory conditions, such as arthritis.      

Oily fish also contain vitamins A and D.          

Scientists at UCLA's Jonsson Comprehensive Cancer Center found that prostate cancer progression was significantly slowed when patients went on a low-fat diet with fish oil supplements. (Link to article)          


Oily fish are rich in omega-3 fatty acids        

The following benefits linked to fish oils or fish oil supplements have been reported online in Medical News Today:

·       "Fish Oil Aids Bi-Polar Behavior In Mice, Hinders Alcohol Cravings"

·       "Fish Oil May Prevent Muscle Loss In Breast Cancer Survivors"

·       "Fish Oil Boosts Responses To Breast Cancer Drug Tamoxifen"

·       "Fish Oil Omegas Now Fight Women's Vision Loss"

·       "Fish Oil And Omega-3s, Helping Chemo Patients Gain Weight"

6) Leafy green vegetables

 

Studies have shown that a high intake of dark-leafy vegetables, such as spinach or cabbage may significantly lower a person's risk of developing diabetes type 2. Researchers from Leicester University, England, said that the impact of dark green vegetables on human health should be investigated further, after they gathered data from six studies. 

Spinach, for example, is very rich in antioxidants, especially when uncooked, steamed or very lightly boiled. It is a good source of vitamins A, B₆, C, E and K, as well as selenium, niacin, zinc, phosphorus, copper, folic acid, potassium, calcium, manganese, betaine, and iron.           


Boiling spinach can significantly reduce its levels of good nutrients.

 

7) Sweet potatoes

 

Sweet potatoes are rich in dietary fiber, beta carotene, complex carbohydrates, vitamin C, vitamin B₆, as well as carotene (the pink, yellow ones).

The Center for Science in the Public Interest, USA, compared the nutritional value of sweet potatoes to other vegetables. The sweet potato ranked number one, when vitamins A and C, iron, calcium, protein and complex carbohydrates were considered.


Sweet potato roots are rich in fiber and several important nutrients

8) Wheat germ

 

Wheat germ is the part of wheat that germinates to grow into a plant - the embryo of the seed. Germ, along with bran, is commonly a by-product of the milling; when cereals are refined, the germ and bran are often milled out.        

Wheat germ is high in several vital nutrients, such as vitamin E, folic acid (folate), thiamin, zinc, magnesium, phosphorus, as well as fatty alcohols and essential fatty acids.  

Wheat germ is also a good source of fiber.

9) Avocados

Many people avoid avocados because of its high fat content; they believe that avoiding all fats leads to better health and easier-to-control body weight - this is a myth. Approximately 75% of the calories in an avocado come from fat; mostly monosaturated fat.        


Weight-for-weight, avocadoes have 35% more potassium than bananas.   

Avocados are also very rich in B vitamins, as well as vitamin K and vitamin E.           

Avocados also have a very high fiber content of 25% soluble and 75% insoluble fiber.

Studies have shown that regular avocado consumption lowers blood cholesterol levels.  

Avocado extracts are currently being studied in the laboratory to see whether they might be useful for treating diabetes or hypertension.           

Researchers from Ohio State University found that nutrients taken from avocados were able to stop oral cancer cells, and even destroy some of the pre-cancerous cells.      

An article on avocados and oral cancer prevention:          
"Avocados May Help Prevent Oral Cancer, OSU Study Shows") 

10) Oatmeal

Oatmeal is meal made from rolled or ground oats, or porridge made from ground or rolled oats. In the United Kingdom and the Republic of Ireland, the term "porridge" or "porridge oats" are common terms for the breakfast cereal that is usually cooked.      

Interest in oatmeal has increased considerably over the last twenty years because of its health benefits.       

Studies have shown that if you eat a bowl of oatmeal everyday your blood cholesterol levels, especially if they are too high, will drop, because of the cereal's soluble fiber content. When findings were published in the 1980s, an "oat bran craze" spread across the USA and Western Europe. The oats craze dropped off in the 1990s.  

In 1997, the FDA (Food and Drug Administration) agreed that foods with high levels of rolled oats or oat bran could include data on their labels about their cardiovascular heart benefits if accompanied with a low-fat diet. This was followed by another surge in oatmeal popularity.     

Oats is rich in complex carbohydrates, as well as water-soluble fiber, which slow digestion down and stabilize levels of blood-glucose.  

Oatmeal porridge is very rich in B vitamins, omega-3 fatty acids, folate, and potassium.


Coarse or steel-cut oats contain more fiber than instant varieties.