Epilepsy: Higher doses of THC might trigger seizures in those with epilepsy. There have already been many stories wherever higher doses of cannabis which contains THC have triggered seizures. Also You should not confuse it with synthetic cannabinoids such as K2/Spice, or with crops made up of THC, such as https://goldirareviews75284.blogdon.net/5-essential-elements-for-endocannabinoid-system-49049639