Marijuana is considered to be a medicinal drug and if consumed for health purposes it can be useful for a person. But now a study has found that marijuana might really help HIV patients keep mental stamina longer. A group of researchers have found that a chemical found in marijuana known as tetrahydrocannabinol or THC has been found to potentially slow the process in which mental decline can occur in up to 50 per cent of HIV patients. While talking about the study Norbert Kaminski lead author of the study said It is believed that cognitive function decreases in many