Catharsis occurs when we laugh and when we cry. Especially in Western culture, the dam that holds emotion back (pride, stoicism, fear of judgment) is constructed higher and higher and higher as we attempt to remain calm, cool, collected, and in control of ourselves. We take ourselves so seriously that laughter and tears, expressions of extreme emotions, are oftentimes repressed.
Normal healthy people would not avoid these expressions, but would embrace them. I have no proof for this, but I feel that tears themselves may have a scientific healing value. As any woman will tell you, “there’s just something about a good cry.” Likewise, there is something that is healing about a good old fashioned guffaw. The kind of uproarious laughter that makes your abs hurt. Belly laughing has been demonstrated to relieve stress and release dopamine (the “feel-good” neurotransmitter, or brain chemical) into the brain by neuro-scientists.
Laugh. Cry. Laugh so hard and long enough that you cry. Let your emotions go. Live life.