Take a seaside vacation
Hitting the beach is synonymous with relaxation. The turquoise waters of the tropics bring the sight, sound, and briny smell of the waves into a hypnotic focus. The crashing action of waves releases negative ions into the sea air that can support lung function and the flow of oxygen to the brain. Research shows that interacting with (rather than simply viewing) blue spaces increases mood-boosting benefits, so use that as an excuse to play in the waves, surf, and snorkel your way to serenity.