What is Alopecia, the medical-condition 'Gone Kesh' is based on

Medically speaking, Alopecia occurs when white blood cells attack cells in hair follicles, leading to their shrinkage and slowing down of hair production.

However, it is not fully known why the body's immune system targets hair follicles in this way.

Notably, genetics are the major cause for Alopecia. Other risk factors that could lead to it include family history and severe stress.

The most common symptom of Alopecia is patchy (usually small and round) hair-loss, mainly from the scalp. One might also experience itching and burning around the patches.

Signs of Alopecia can also be seen on fingernails and toenails. These include appearance of pinpoint dents, white spots, lines, loss of shine, roughness and thinness of nails.

Other signs are exclamation-mark hairs, cadaver hairs, white hairs.

Heredity or genetics-induced hair loss cannot be prevented. However, for other, preventable types, follow these tips:

1) Handle your hair with care. Avoid tight hairstyles, like braids, buns and ponytails. Don't indulge in unnecessary pulling or twisting of hair.

2) Avoid consumption of medications that might cause hair loss.

3) Avoid artificial hair treatments such as hot rollers, curling irons, hot oil treatments etc.

4) Be gentle while washing and brushing your hair. For brushing, use a wide-toothed comb to prevent hair loss.

5) Protect your hair from excessive sunlight and other sources of UV light.

6) Get rid of smoking, as studies show it triggers hair loss.

Note: If these prevention tips don't work, see your doctor as soon as possible.