Why Laughter May Be Good for Your Physical and Mental Health
You probably do not think about the physical effects of laughing when you’re watching a funny movie or sharing a joke with friends. But laughter changes breathing, activates muscles and can influence the body’s stress response.
Scientists are increasingly studying those effects to understand whether something as simple as laughing could contribute to better well-being.
The research is promising in some areas, although experts caution that laughter should complement rather than replace established approaches to health.
A Laugh Is a Physical Response
A strong laugh can leave your cheeks and stomach muscles aching, and there is a reason for that. Laughter is a physical activity involving repeated muscle contractions and changes in breathing.
During a hearty laugh, people may take deeper breaths and temporarily increase circulation. The experience can also produce a feeling of relaxation afterward.
Those effects are one reason researchers have become interested in the connection between laughter benefits for health and the body’s stress response.
Your Stress Hormone May Drop
One of the clearest areas of research involves cortisol.
A review of eight small studies found that spontaneous laughter was associated with roughly a 30% reduction in cortisol. Researchers have also conducted experiments looking at whether even relatively short periods of laughter can influence stress.
That does not mean laughter eliminates chronic stress. Instead, it may provide a temporary physiological shift that helps people feel more relaxed.
The Mental Health Connection
Researchers are also looking at whether laughter-based activities can influence anxiety and depression.
A 2026 dose-response meta-analysis included 33 studies and reported significant reductions in depression, anxiety and stress among participants receiving laughter-inducing interventions. The researchers also found that the amount and duration of the intervention appeared to matter.
However, laughter therapy covers a variety of activities, so the findings should not be interpreted as proof that simply watching a comedy show will treat depression or anxiety.
What About People With Serious Illness?
Laughter is also being studied in healthcare settings.
A recent systematic review analyzed 16 randomized controlled trials involving 1,127 cancer patients. The researchers concluded that laughter therapy probably reduces anxiety and may help with pain and stress. However, they found little or no clear effect on quality of life and said evidence for several other outcomes remained very uncertain.
That distinction is important. Laughter may support emotional well-being during difficult circumstances, but it is not a cure for cancer or a replacement for medical care.
The Social Side of Laughing
There is another reason laughter may be valuable: people rarely laugh completely alone.
Shared humor can create connections between friends, family members, colleagues and even strangers. A room full of people laughing together can temporarily reduce social barriers and create a stronger sense of connection.
That may be especially helpful when people are dealing with loneliness or stressful circumstances.
Making Room for Humor
Adding more laughter to your routine does not require a formal therapy program. You might watch something genuinely funny, spend time with people who make you laugh or revisit a memory that always brings a smile.
The potential laughter benefits for health are best viewed as one small part of a broader approach to well-being.
Exercise, nutritious food, adequate sleep and appropriate medical care remain important. But if laughing with friends can lower stress and brighten your day at the same time, there is little reason not to make more room for it.
