1. Increases happiness.

It reduces anxiety, boosts your mood, and even slows your heart rate

2. Reduces dementia.
It reduces depression and isolation, and can also help people with dementia tap back in to their personalities and sharpen their senses

3. Improves mental health.
And it can also help you process trauma.

4. Makes you smarter.
Studies show that people who play instruments have better connectivity between their left and right brains.  When the two hemispheres of your brain communicate with each other, your cognitive function improves.