Marijuana's effects on athletic performance
Yes, I used the search feature, I saw this has been discussed in the past, but I'm still hungry for more information, and I think it's an interesting discussion.
^ above is a fairly good article on this topic, however it doesn't seem like this is something that has been tested thoroughly. If anyone has links to any real research that has been done please post it here.
I'm a weed smoker and I also train or workout nearly every day so I feel I'm fairly in touch with how it effects my performance. I avoid smoking before training, although I have done it before. I think there are some possible benefits to being high during a laid back technique based jujitsu session as it sometimes helps me discover something new and helps me to relax a bit. That said it definitely worsens by cardiovascular endurance and I would never smoke before hard fight training or before competition. In fact I notice my cardio improves after a few days of not smoking at all and all the flem is cleared out of my lungs and throat.
In conclusion my opinion is that smoking marijuana will worsen cardiovascular strength, as smoking anything is bad for the lungs. I am unsure about decreased reaction, although I wouldn't smoke before stand up sparring. Lastly, while I'm aware weed definitely doesn't do much to help me as an athlete, I do it anyway and I would much rather train the next morning having smoked the night before as opposed to drinking, even if it was as few as 3 drinks. I'm curious to hear other peoples experiences, and hopefully someone has some access to real research.