Parkinson’s disease is the second most common neurological illness in the United States, causing tremors, slowness of movement, postural instability, and impaired balance and coordination. But findings from a new review suggest symptoms of the condition could be improved with marijuana.

The researchers note that medical marijuana has been approved in various U.S. states to treat symptoms of cancer, HIV/AIDS, glaucoma, chronic pain, seizures, cachexia, and multiple sclerosis.

Recently, another study suggested that tetrahydrocannabinol (THC) – the active compound in marijuana – reduced beta-amyloid levels in nerve cells, a protein considered a hallmark of Alzheimer’s disease.