Hair loss has become more common in both men and women but is more visible in men and make them bald and lower the confidence level and give them much older look. Causes: Anemia, protein deficiency, low vitamin levels, and other environmental issues like contaminated water, polluted air, long working hours, long travels, unhygienic food habits, no proper sleep, etc. may cause hair loss. When there is a hair loss, people worry a lot and make them stressed. To overcome that we have so many methods to regrow the hair.