Weak and unhealthy fingernails are often caused by nutritional deficiencies such as low iron or biotin, dehydration, or frequent exposure to water and chemicals. They may also be linked to conditions such as thyroid imbalance, anaemia, or fungal infections. A doctor may suggest blood tests, treat any underlying deficiencies, and recommend improving diet and considering supplements if needed. Keeping nails dry, using gloves during cleaning, avoiding harsh detergents, and using a gentle moisturiser can also help improve their strength over time.

Biotin supplements are generally only helpful if there is an underlying deficiency and are not usually effective for most types of hair loss. It is important to consult a doctor or dermatologist to identify possible causes of your hair loss, which may include nutritional deficiency, thyroid imbalance, hormonal changes, or stress-related shedding. Depending on the diagnosis, treatments such as topical minoxidil or other targeted therapies may be advised.

Hair fall with a strong family history is usually due to hereditary (androgenetic) hair loss, which cannot be completely prevented but can often be slowed down with early and consistent care. You should maintain a healthy diet rich in protein, iron, and vitamins, manage stress, and avoid harsh hair treatments or tight hairstyles. Medically, treatments like topical minoxidil can help slow hair thinning and promote regrowth when used regularly, and in some cases, doctors may prescribe oral medications after proper evaluation. It is best to consult a dermatologist early, as starting treatment sooner gives better results and helps preserve existing hair. Avoid relying on unproven oils or supplements alone, as they have limited benefit.