There are other diet-related diseases besides those caused by
vitamin and mineral deficiencies as discussed in the Toxic
or Not module.
lifestyle factors that affect health are the behaviors of the person.
Behavioral activities such as cigarette smoking, excessive alcohol
intake and an unbalanced diet help to determine a person's health.
One billion people across
the world are now overweight or
obese, leading to fears that obesity will rapidly overtake smoking
tobacco as the leading lifestyle risk factor for heart disease and
Overweight usually refers to an excess in body weight compared to
certain standards. This excess weight could be due to an excess in
muscle mass, bone, fat and/or body water. Obesity, however, refers
to an abnormal excess in body fat. A person can be overweight but
not obese, as in the case of an athlete or body builder with a lot of
muscles. However most people are overweight due to obesity.
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