Creatine is a natural compound that helps with energy metabolism, especially in muscles and the brain
Willeit et al., 2014
The other 2 said about 80% of their symptoms improved

When taken daily, one study suggests that AREDS may reduce the risk of this condition progressing by 25% ( In addition, vitamin C is required to make collagen, a protein that provides structure to your eye, particularly in the cornea and sclera ( Several observational studies suggest that vitamin C may help lower your risk of developing cataracts, a condition that causes your eye to become cloudy and impairs vision ( For example, one observational study showed a 75% reduced risk of developing cataracts when the daily vitamin C intake was above 490 mg, compared to 125 mg or less ( Another study found that regular vitamin C supplements may reduce the risk of cataracts by 45% ( Citrus and tropical fruits, bell peppers, broccoli, and kale contain particularly high amounts of vitamin C, making them great options to boost your daily intake ( Researchers have also studied several B vitamins for their impact on eye health, particularly vitamins B6, B9, and B12

Exposure to hypoxia at high altitude (5380 m) for 1 year induces reversible effects on semen quality and serum reproductive hormone levels in young male adults
Therefore, timely hemostasis is essential to prevent shock and death by bleeding