characteristics

Some people experience an unpleasant reaction to drinking even a slight amount of alcohol. Their faces turn red and they may experience drowsiness, nausea, and an increased heart rate. This reaction to alcohol is called alcohol flush reaction and may mean that you are less likely to have a predisposition for alcoholism.

Not everyone has the same perception of bitterness. Some of us cannot taste certain compounds at all while others immediately perceive them as having unpleasant bitter taste. The ability to detect this bitter taste may have considerable impact on our health from infancy to old age.

Male pattern baldness or androgenic alopecia, the most common form of hair loss, is not a medical disorder but determined, in part at least, by your genome. Indeed, some degree of male pattern baldness affects roughly 50% of males of European descent during their lifetime and increases steadily with age.

Although the addictive properties of nicotine affect almost all smokers, there are certain patterns of smoking behavior. Although everyone is perhaps equally susceptible to starting, a variant on chromosome 15 is now thought to have some influence on our ability to quit.