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Androgenic alopecia (AGA) might have evolved to reduce prostate cancer risk by increasing UV exposure to the scalp, but this theory is debated. Treatments like minoxidil and finasteride are used for AGA, though the exact causes and evolutionary reasons for hair loss are unclear.

Body hair transplants can be a last resort for hair loss, using body hair to fill scalp gaps, though it may not match scalp hair in texture or length. Minoxidil and finasteride are discussed as treatments, with varying effectiveness and side effects.

The conversation humorously discusses diverting DHT from head to body hair and explores the idea of transplanting body hair to the scalp. It also mentions the potential for treatments to prevent DHT from affecting hair follicles.

Oral minoxidil is claimed to be more effective and easier to use than topical minoxidil, with a 100% response rate, but it may cause unwanted body hair growth and has potential heart-related side effects. Topical minoxidil is less effective for many due to enzyme limitations, can cause scalp issues, and is more challenging to apply, but it avoids systemic side effects.

Significant hair regrowth was achieved using finasteride and 2.5mg oral minoxidil over a year, despite initial shedding. The treatment is recommended, though it may cause increased heart rate and body hair growth.