Skip navigation

cancer

PositiveTip for

Risks of Supplements May be Underestimated

Clinical antioxidant trials have shown increased risk of cancer with supplementation.

The wide use of supplements (50% of U.S. population), fueled by marketing-oriented claims of many benefits, may actually increase the risks of cancer according to a review of many studies. In the face of the abscence of convincing evidence that more is better in nutrient-adequate populations, especially for cancer, the authors called for more education from the scientific community and more regulatory vigilance.

PositiveTip: Healthy food choices are the best way to support health and reduce the risk of disease.

PositiveTip for

A Mixed Report on Cancer

Cancer rates fall, but poor lifestyle toll mounts.

If you don't smoke, excess weight and lack of sufficient physical activity are the greatest risk factors for cancer, according to the 2012 Annual Report to the Nation stated. While cancer incidence and mortality have continued to decline since the early 1990s, cancers associated with these risk factors are a critical concern. Theyh are identified in the report as esopageal, colorectal, kidney, pancreatic, endometrial, and postmenopausal breast cancer. 

PositiveTip: Get moving every day and eat only what you need to lower your risk for cancer!

PositiveTip for

Cancer Risk and Dietary Cholesterol

High dietary cholesterol intake linked to higher cancer risk.

Dietary cholesterol intake is associated with a higher risk of cancers of the stomach, colon, rectum, pancreas, lung, kidney, bladder, and postmenopausal breast cancer. A recent Canadian study shows that high cholesterol intake is linked to a higher risk of several common cancers. Though the mechanisms involved are not fully understood, these findings suggest that diets low in cholesterol may help prevent cancer.

PositiveTip: Increasing plant foods in your diet, and decreasing animal foods (the only source of dietary cholesterol) may lower your risk of cancer.

PositiveTip for

Healthy Habits Reduce Risk Of Cardiovascular, Cancer, And All-Causes Mortality

Healthy Habits Reduce Risk Of Cardiovascular Disease Deaths in Chinese Women By 59%.

The Shanghai Women’s Health Study followed approximately 71,000 Chinese women aged 40-70 for 9 years. Among participants, common lifestyle risk factors of early death included physical inactivity, abdominal obesity, being overweight or obese, exposure to spousal tobacco smoke, and eating few fruits and vegetables. When participants reversed these risk factors, they exhibited a striking life-extending effect, especially in participants with a severe history of chronic disease. Overall, results showed that participants with healthy lifestyle habits reduced their risk of cardiovascular disease by 59%, all causes of mortality by 33%, and cancer by 19%.

PositiveTip for

Diet, Exercise, and Weight Are Major Contributors to Health

Lifestyle may reduce risk of early death by 42%.

The Cancer Prevention Study ll Nutrition Cohort shows that  people who maintain a BMI within normal range, exercise 30 or more minutes daily, and eat a diet high in fruits, vegetables, and whole grains exhibit reduced deaths from cardiovascular disease, cancer, and all cause mortality. For those who met the criteria above, this study shows reductions of 48%, 30%, and 42% for cardiovascular disease, cancer, and all cause mortality in men. For women, the numbers are 58%, 24%, and 42%, respectively.

PositiveTip:  Diet, exercise, and maintaining a normal weight significantly reduce the risk of disease and premature death.

 

Prevent Your Own Cancer

Nearly 50% of all cancer deaths can be prevented. It is reliably estimated that lifestyle and environmental factors are responsible for 42% of the cancers in the United Kingdom. What is true in the UK is likely to be true in much of the industrialized world. 

The research looked at the contribution to cancer made by tobacco, unhealthful foods in the diet, obesity, alcohol, lack of exercise, industrial exposures, radiation and several other factors that make a small contribution to cancer. 

Of the 314,000 cases of cancer in the UK in 2010, 134,000 were preventable. Tobacco caused 60,000 premature cancer deaths.There were 29,000 cancers caused by eating red meat or a lack of fruits and vegetables in the diet. Obesity was responsible for another 17,000 premature cancer deaths. Alcohol drinking caused 12,000 premature deaths.

PositiveTip for

Beware of the Tanning Bed!

New research questions the safety of tanning beds.,

In 2009 the World Health Organization declared tanning beds to be carcinogens. The industry countered that the UVA1 wavelengths were safer. Research has now found that when small areas of the skin of healthy volunteers was irradiated with either UVB or UVA1 wavelengths, changes to the DNA occurred, strongly suggesting carcinogenic effects of both types of UV light. The UVB damage tends to occur in the upper epidermis and UVA1 tended to occur in the lower dermis.

PositiveTip: Use a broad-spectrum sunscreen that protects against both UVB and UVA wavelengths to effectively reduce the risk of skin cancer.

PositiveTip for

No Link Between Cell Phone Use and Brain Cancer

Largest study ever of cell phone use finds no additional risk for brain cancer.

The way Denmark tracks information about its citizens has made it a unique laboratory for long-term population studies. Taking advantage of this, researchers have found that after adjusting for things like age, years of cellphone use, and income there was no observed link between phone users and cancer. After 15 years of exposure, no dose effect was seen either. 

PositiveTip: While these findings are comforting, it is still probably prudent to avoid constant talking on your cellphone unless using some type of earphone.

 

Daughters Get Breast Cancer Sooner than their Mothers

The genetic markers BRCA1 and BRCA2 indicate an increased likelihood of developing breast cancer. A recent study shows that children with these genetic markers will develop breast or ovarian cancer much earlier than their cancer prone parents did.

The research was done at the University of Texas MD Anderson Cancer Center. The doctors were able to pair 106 women with BRCA-positive cancer with a family member in the previous generation who was also diagnosed with a BRCA-related breast or ovarian cancer at some time in their lives.

The average age of cancer diagnosis in the parents was 48 years but was only 42 years in the children. Using a mathematical predictive model it was estimated that the drop in expected age at onset of cancer for everyone in the study was 7.9 years.

Obesity and Cancer of the Esophagus

Obesity is associated with a higher risk of several cancers, including cancer of the thyroid, colon, kidney, liver, gall bladder, pancreas and uterus. But the strongest association between obesity and cancer is with the esophagus. 

The esophagus is a muscular tube that connects your mouth with your stomach. It is made of skin-like cells and your saliva and liquid intake are its' only lubrication for swallowing. 

Smoking cigarettes and drinking alcoholic beverages are major causes of esophageal cancer. Now we need to add obesity too. While general obesity contributes to this risk, abdominal obesity - typically seen in men - is especially risky.