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Former users consider their contraceptive journey to be successful in preventing pregnancy, but desire more male contraceptive options and improved information and counselling services. Findings highlight the complexity of pill use, including switching, stopping, and restarting, shaped by biopsychological factors, side effects, and evolving attitudes toward hormones and pregnancy risk
Beyond melanin-dependent photoprotection through increased UV absorption by eumelanin, research has characterised MC1R-mediated photoprotection mechanisms that operate independently of melanin production
Without UVA and UVB protection, these rays of light trigger the overproduction of melanin in the skin, exacerbating melasma and darkening the patches of pigmentation
doi: 10.1038/ncomms16040 28 YanHLiuYLiXYuBHeJMaoXet al
In male elite climbers, the resting serum cortisol and plasma adrenocorticotropic hormone (ACTH) levels taken at 07:0007:30 did not change at 5200 m extreme altitude camp compared with those at sea level 6
