Crying is not bad for your health. For most people, it’s the opposite: a built-in recovery mechanism that slows your heart rate, regulates your breathing, and releases natural painkillers. That said, the benefits aren’t automatic. Whether crying helps or harms you depends on the context, your mental state, and what happens around you while you cry.
What Happens in Your Body When You Cry
Emotional crying activates your parasympathetic nervous system, the branch responsible for rest, recovery, and relaxation. Once tears start flowing, your breathing slows and your heart rate variability increases, meaning your heart shifts into a calmer, more regulated rhythm. This isn’t just a feeling. Researchers measuring these changes in real time found that parasympathetic activity kicks in at the onset of tear production and stays elevated longer in people who cry compared to those who hold it in. Meanwhile, the “fight or flight” side of your nervous system returns to baseline relatively quickly after tears begin.
Think of it as a biological cool-down. Your body ramps up stress during the emotional buildup, then crying flips a switch that brings you back toward equilibrium. The slowed breathing likely drives much of this effect, acting as a natural brake on the stress response.
The Chemistry of Emotional Tears
Not all tears are the same. You produce three types: basal tears that keep your eyes lubricated, reflex tears triggered by irritants like onions, and emotional tears. Emotional tears have a distinct chemical profile. According to the American Academy of Ophthalmology, researchers have found higher levels of prolactin, stress hormones, and a natural painkiller called leucine enkephalin in emotional tears compared to the other types. Potassium and manganese concentrations are also elevated.
Crying also triggers the release of oxytocin and endorphins, your body’s own feel-good chemicals. These compounds ease both physical and emotional pain, which helps explain why many people feel a sense of relief after a good cry. The idea is that shedding emotional tears literally flushes out stress-related chemicals while simultaneously triggering soothing ones.
When Crying Doesn’t Help
Here’s the important caveat: crying doesn’t benefit everyone equally. Research shows that people with depression often don’t experience the mood improvement that others get from crying. In nondepressed individuals, the parasympathetic recovery response ramps up as crying winds down, creating that familiar sense of calm. In depressed individuals, this self-regulatory mechanism appears compromised. The physiological “reset” simply doesn’t happen the same way, which may explain why crying during a depressive episode can feel like it makes things worse rather than better.
Context matters enormously too. Several factors determine whether a crying episode leaves you feeling better or worse:
- Social response: If the people around you offer comfort, you’re more likely to feel better afterward. Disapproval, awkwardness, or negative reactions from others tend to cancel out the benefits.
- Sense of control: Crying over events that feel completely uncontrollable is less likely to bring relief than crying over situations where some resolution is possible.
- Personality and psychological state: Your baseline mental health significantly shapes whether crying serves as emotional release or simply reinforces distress.
In other words, crying that leads to some kind of emotional resolution tends to be helpful. Crying that loops into rumination, where you cry without processing or resolving anything, can leave you feeling stuck.
Physical Side Effects of Crying
Crying can cause real, if temporary, physical discomfort. The most common complaint is a headache. Researchers have identified crying as a trigger for both tension-type headaches and migraines, likely due to changes in neurotransmitter activity and increased pressure inside the skull during intense sobbing. Sinus pressure, puffy eyes, and a stuffy nose are also typical. None of these are dangerous, but they’re unpleasant enough that people sometimes mistake the aftermath of crying for a sign that it was harmful.
Tears themselves are mildly irritating to skin with prolonged exposure. Your tears have a pH around 7 (neutral), while your skin sits closer to 5.5 or 6 (slightly acidic). A single crying episode won’t damage your skin, but if you’re crying frequently and wiping tears across your face repeatedly, the pH mismatch can cause minor irritation or dryness over time.
Holding Back Tears vs. Letting Them Flow
If crying activates a calming recovery process, suppressing it may mean missing out on that reset. The parasympathetic benefits researchers observed, slower breathing, improved heart rate variability, extended calm after the emotional peak, were specific to people who actually produced tears. Non-criers in the same emotional situations didn’t show the same prolonged parasympathetic activity. Your body appears to use the physical act of crying, particularly the production of tears and the shift in breathing, as the trigger for its own soothing response.
That doesn’t mean you need to force tears or that every situation calls for crying. But habitually suppressing the urge when it arises may prevent your nervous system from completing its natural stress-recovery cycle. Over time, that pattern of suppression could leave you carrying more unresolved physiological tension than someone who cries when the feeling comes.
How Much Crying Is Normal
There’s a wide range of normal when it comes to crying frequency. Some people cry several times a week, others a few times a year. Women generally cry more often than men, though the gap varies across cultures and appears to be influenced by both hormones (prolactin levels are higher in women) and social expectations around emotional expression.
What matters more than frequency is pattern change. If you notice you’re crying significantly more than usual, or you’re crying and consistently feel worse rather than better afterward, that shift is worth paying attention to. The absence of the typical post-cry relief is one of the patterns researchers have linked to depression, and it can serve as an early signal that something deeper is going on.