Vitamin D is necessary to activate the immune system of the killer T-cells. According to a study published in the journal Nature Immunology, when T-cells are exposed to foreign pathogens or infections, they extend antennae known as vitamin D receptors. If T cells can not find enough vitamin D in the blood, they remain dormant – unaware of possible dangers. Most of vitamin D is by the body when the skin is exposed to sunlight; but as people staying indoors more, almost 50% of the world population is vitamin D deficiency. It seems that our weeks are more “Sunday”.
What we need is less junk food. It’s addicting. The 11 rats – like people who are addicted to cocaine or heroin – needed to be bigger fixes of junk food high, causing compulsive eating and obesity. Their addiction also triggered the same brains reactions that lead to drug addiction. Because the loss of control over the behavior is the main sign of addiction, this study “ratted on” the effects of junk food.
The effect of loneliness is higher blood pressure. Researchers at the University of Chicago surveyed 229 people ages 50-68. They were asked to rank their feelings about social relationship statements. After accounting for functions such as smoking, physical activity, body mass index, cardiovascular health and depression, as well as factoring in age, race, ethnicity and gender, the results were the same. During the five-year study, participants who ranked loneliest had blood pressure levels 14.4 points higher than those ranked least lonely and they experienced greater increases in blood pressure during the study. Unfortunately, loneliness creates a new type of “pressure group”.
Fortunately, one-third of breast cancer in Western countries are avoided. Breast cancer is the most common cancer in women. In 2009 there were over 190,000 new cases and 40,000 deaths in the US. According to a 2010 international conference on breast cancer, women can do three things to lower risk. First, lose weight. Many breast cancers are fed by estrogen, a hormone which is produced in adipose tissue. Second, the exercise. Exercise converts fat tissue muscles. Third, drink less alcohol. More than 2 drinks per day increases the risk of breast cancer 4% -10%. It is clear that one key to health is a healthy life.