The four main "happiness hormones" (also neurotransmitters) are Dopamine, Serotonin, Oxytocin, and Endorphins, each promoting different positive feelings like pleasure, mood stabilization, bonding, and pain relief, and can be boosted through lifestyle changes such as exercise, diet, social connection, and mindfulness.
8 factors that promote the production of happiness hormones
While dopamine drives us to seek rewards and stimulation, serotonin is linked to calm, contentment, and inner stability. You'll learn: How dopamine can create a cycle of craving and dissatisfaction Why serotonin supports lasting fulfillment and peace of mind.
Serotonin levels.
A drop in serotonin, a brain chemical (neurotransmitter) that affects mood, might play a role in SAD. Reduced sunlight can cause a drop in serotonin that may trigger depression.
A drop in estrogen and progesterone may trigger depressive episodes. Increased levels of progesterone, such as through taking a progesterone-only contraceptive, may also increase the risk of depression in some people. Low testosterone levels may also cause depression.
Because many people with winter-pattern SAD have vitamin D deficiency, vitamin D supplements may help improve symptoms. However, studies testing vitamin D as a treatment for SAD have produced mixed results, with some studies indicating that it is as effective as light therapy and other studies finding no effect.
The 2-2-2 relationship rule is a guideline for couples to keep their bond strong and fresh by scheduling regular, dedicated time together: a date night every two weeks, a weekend getaway every two months, and a week-long vacation every two years, which helps prioritize connection, break routine, and create lasting memories. It's a framework to ensure consistent quality time, even with busy schedules, to prevent boredom and strengthen partnership.
12 Mood-Boosting Foods: Eat Your Way to Happiness!
Love biologist Dawn Maslar states that hormones such as dopamine and vasopressin are important for a man to begin falling in love. Oxytocin, a hormone released when you hug a loved one, is very important in building and strengthening love in men in later stages.
You can try increasing your serotonin level by eating tryptophan-containing foods, such as:
Low dopamine symptoms often involve a lack of motivation, pleasure (anhedonia), and energy, leading to fatigue, mood changes like depression/anxiety, difficulty concentrating, and a reduced sex drive, alongside physical issues such as sleep problems, muscle stiffness, tremors, and slow movement (like in Parkinson's).
Sex, shopping, smelling cookies baking in the oven — all these things can trigger dopamine release, or a "dopamine rush." This feel-good neurotransmitter is also involved in reinforcement.
Dark Chocolate Hot Cocoa. Dark chocolate has been touted for many health benefits—and a cup of hot cocoa made with it can help you feel better. "Cocoa contains flavonoids, which improve blood flow to the brain and enhance cognitive function," Susie says. "It also boosts serotonin levels, contributing to a better mood."
Zinc is a key mineral in supporting oxytocin production, making it essential for holistic mental health and emotional connection. To naturally increase your happy hormones, try: Eating a balanced diet rich in magnesium, zinc, and B vitamins.
A peanut butter and jelly sandwich (PB&J) adds about 33 minutes to your healthy lifespan per serving, according to a University of Michigan study that measured life expectancy impacts of over 5,850 foods using the Health Nutritional Index (HNI). This sandwich tops the list for adding time, with nuts and seeds also being highly beneficial (around 25 mins) and processed items like hot dogs subtracting time.
Vitamin B-12 and other B vitamins play a role in making brain chemicals that affect mood and other brain functions. Low levels of B-12 and other B vitamins and folate may be linked to depression. Low levels of a vitamin, also called a vitamin deficiency, can happen if you're not eating a balanced diet.
Dopamine levels are most depleted by chronic stress, poor sleep, lack of protein/nutrients, obesity, and excessive sugar/saturated fats, which desensitize receptors and impair production; substance misuse (like cocaine) and certain health conditions (like Parkinson's) also directly damage dopamine systems, reducing its availability. Unhealthy lifestyle habits, especially those involving processed foods and lack of sleep, significantly deplete this crucial neurotransmitter.
The 777 dating rule is a relationship strategy for intentional connection, suggesting couples schedule a date every 7 days, an overnight getaway every 7 weeks, and a longer vacation every 7 months to keep the spark alive, build memories, and prevent disconnection from daily life. It's about consistent, quality time, not necessarily grand gestures, and focuses on undivided attention to strengthen intimacy and partnership over time.
While many factors contribute, many experts point to poor communication (especially criticism, contempt, defensiveness, and stonewalling) and a breakdown in emotional connection/trust, often stemming from dishonesty or disrespect, as the #1 things that destroy marriages, eroding intimacy and making partners feel unheard and unloved over time. Infidelity, financial stress, and shifting priorities (like putting family/in-laws above spouse) are also major contributors that feed these core issues.
survived the dreaded two-year mark (i.e. the most common time period when couples break up), then you're destined to be together forever… right? Unfortunately, the two-year mark isn't the only relationship test to pass, nor do you get to relax before the seven-year itch.
Taking too much vitamin D leads to calcium buildup (hypercalcemia), causing physical signs like nausea/vomiting, fatigue/weakness, frequent urination & excessive thirst, constipation, and confusion/disorientation, alongside potential bone pain or kidney stones, often from supplements, not sun exposure.
Two forms of vitamin D are available in supplements: vitamin D3 and vitamin D2. Both can help correct vitamin D deficiency, but most doctors recommend D3 because it is slightly more active and therefore slightly more effective. Vitamin D3 is naturally produced by animals, including humans.