The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Chronic fatigue syndrome leaves patients exhausted and struggling with brain fog - and it typically gets worse after mental or physical exercise, a phenomenon called post-exertional malaise. Now ...

Dysautonomia is a broad term for conditions that range from fainting to more serious life threatening conditions. Some are quite common, and some are extremely rare. Dysautonomia is a nervous system ...

Sleeping with your mouth open may seem harmless, but it can significantly impact your health. While occasional open-mouth breathing, like during a cold, is usually temporary, chronic mouth breathing ...

Chronic fatigue syndrome leaves patients exhausted and struggling with brain fog—and it typically gets worse after mental or physical exercise, a phenomenon called post-exertional malaise. Now, ...

Breathing properly is important to your overall health, as every system in your body relies on oxygen. An inadequate oxygen supply can impact stress management, energy levels, cognitive abilities and ...

Aspergillosis is a group of infections that occur due to inhaling spores of a fungus called Aspergillus. These infections are more likely to affect people with chronic lung disease or weakened immune ...

Respiratory syncytial virus (RSV) is an infection that affects your lungs, nose, throat, and breathing passages. You get it when infected droplets enter your nose, eyes, or mouth. This might happen ...

Nasal obstruction is a blockage of the nasal cavity, which is the space inside the nose. It may occur due to excess mucus or structural changes to the nose. The nasal cavity divides into two passages, ...