The reason why obstructive sleep apnea makes you tired is because it causes you to wake frequently throughout the night, preventing restful sleep.

Scientists have long sought to explain a key mismatch in Earth's early history: oxygen-producing photosynthesis evolved hundreds of millions of years before atmospheric oxygen began to rise during the ...

Learn what vitamin B6 does in your body, including benefits for brain health, energy, immunity, heart health. Plus, the best food sources of this essential nutrient.

Dartmouth researchers have developed a cell phone-based tool that monitors tissue health by using a naturally occurring ...

Animals that dwell at high altitudes have adapted to cope with low oxygen levels, a condition that damages a vital part of nerve cells ...

Could hyperbaric oxygen treat PTSD, depression, and anxiety? New evidence suggests that this treatment may rewire the brain—and the results are hard to ignore.

For the first time, scientists have measured atmospheric gases from the late Pliocene, yielding data that could help to predict the future climate ...

The number doctors use to demarcate hypertension keeps going down, a trend applauded by many experts, who point to studies ...

Moral injury among healthcare workers is well recognised in extreme conditions such as the COVID-19 pandemic1 2 or critical care settings,3 but its impact on research personnel has received far less ...

IgA nephropathy, an immune assault on the kidneys, is often missed. New treatments mean that spotting it sooner might save lives ...

Feeling constantly drained and weak even after resting well often tops the list of subtle clues that your body lacks enough vitamin B12. This nutrient plays a key role in producing healthy red blood ...