Cortisol
Coverage of Cortisol in the Nexus archive.
- Dad jokes may be good for your brain in one surprising way, experts say
Experts suggest dad jokes, characterized by puns and wordplay, may reduce stress by altering body chemistry, lowering cortisol, and increasing dopamine and serotonin. Studies indicate shared humor across generations can strengthen family bonds and enhance mental resilience through co-regulation and oxytocin release.
- Scientists reveal surprising brain benefit of laughter: 'It's a mental workout'
Research by Dr. Jacqueline Harding suggests laughter and play are crucial for children's brain development, emotional well-being, and social bonding. Laughter activates brain networks, reduces stress hormones, and increases 'happiness chemicals' like dopamine and serotonin, while fostering resilience and creativity.
- Single workout cuts cravings, offering new hope for smokers trying to quit
Researchers found that a single workout can reduce cigarette cravings in smokers, with high-intensity aerobic exercise being most effective. Exercise training made people 15-21% more likely to abstain from smoking and cut back by an average of two cigarettes per day. Regular exercise also reduces anxiety and stress, which drive many people to smoke.