The headache, perhaps the most common ailment regularly faced by people around the world. There are many potential causes for a headache, but did you know cannabis can have a positive effect on almost all of them? First of all it's a pain killer, most people's first step when suffering a headache is to reach for the paracetamol or ibuprofen, but taking too much of these too regularly can have a bad effect on stomach linings. Cannabis is also an anti-inflammatory and vasodilator which can deal with two of the more common causes of headaches by increasing blood flow to inflicted areas of the brain. If you want some quick relief that doesn't come from the pharmacy shelf then why not buy some medical marijuana seeds and start growing your own medicine today.