It’s no wonder natural sleep aids are popular, as most people experience sleep problems from time to time. Statistics by the American Sleep Association suggest that between 50 and 70…
melatonin
4 Parts of the Brain Not Protected by the Blood-Brain Barrier
The blood-brain barrier prevents toxic substances, large molecules, and neurotransmitters released in the blood from entering the brain. Four areas of the brain are not protected by the blood-brain barrier….