Methylene blue appears to work by affecting the mitochondria, increasing cellular energy production and protecting cells from oxidative damage.

In a formal test, methylene blue did not statistically increase the overall lifespan of mice, leading researchers to conclude it wasn't an effective anti-aging treatment in that study.

In a human study, participants who took a single low dose of methylene blue showed increased brain activity in memory-related regions and performed better on memory tests.

Methylene blue can cause a life-threatening condition called serotonin syndrome when taken with other medications that affect serotonin, like many common antidepressants.

Supplements like methylene blue sourced from the internet may not be regulated and could contain unwanted contaminants such as heavy metals.

According to one study, simply adding more legumes like beans to your diet could be responsible for a gain of up to two and a half years of life expectancy.

The large COSMOS study found that a well-designed multivitamin and mineral supplement boosted cognition, memory, and executive function in humans.