Dr. Sayed Inam: An unexplained weight loss occurs when the bodyweight drops even when the person is not attempting to lose weight. The weight loss does not a result of diet control, exercise, or lifestyle changes. It is considered significant weight loss when at least five percent of the body weight has been lost over the past six months. For example, a 5 percent weight loss in someone who is 160 pounds (72 kilograms) is 8 pounds (3.6 kilograms). For someone who is 200 pounds (90 kilograms), it's 10 pounds (4.5 kilograms).
Unexplained weight loss can be a symptom of a serious illness. It can occur in anyone. However, it is most common (and most serious) in people who are over the age of 65. Even unexplained weight loss of less than 5 percent of body weight or 10 pounds may be a sign of a serious condition in older people.
Weight loss may occur even when there are no other symptoms of chronic infection, such as AIDS, cancer, chronic illness, or Tuberculosis.
Some common causes of unexplained weight loss are Depression, Anxiety, Drug abuse, Stress, Diarrhea, Eating disorders, such as anorexia nervosa, Diabetes, and Overactive thyroid.
Fasting during Ramadan does not usually result in significant weight loss but can lead to weight gain in some exceptional cases. Unhealthy eating or sleeping habits during Ramadan cause weight gain. These habits are contrary to Islam.
The month of Ramadan offers a healthy opportunity to purify oneself and regulate one's diet. In medical science, fasting is considered highly beneficial for health. It helps to prevent and treat metabolic syndrome which is a major risk factor for many neurological diseases. Our brain and body perform better during fasting. In Ramadan, fasting strengthens our brain's cognitive function, memory, learning ability, and alertness.
Dr. Sayed Inam
(DMC, BCS)
Assistant Professor of Psychiatry
Sylhet Medical College.