People who abstain from marijuana will experience enhanced cardiovascular endurance and maybe enhanced VO2 max.
The good news is that one to three days after stopping marijuana, your lungs will begin to mend. However, irreversible lung injury is possible.
After four weeks of abstinence, the neurological functions such as pleasure, motivation, memory, learning, cognitive function will begin to return to normal function.
These results demonstrate that the negative effects of marijuana on the brain are not permanent, and memory and cognition can be regained over time.
Several days or weeks after discontinuing cannabis use, some individuals may experience insomnia, while others may experience nightmares or more vivid dreams.
These symptoms typically subside between 10 and 20 days after quitting cold turkey.
You can obtain relief from these bad emotions as soon as a few days to two weeks after stopping cannabis.
Heavy marijuana usage can cause moderate withdrawal symptoms compared to other substances like heroin, but the first few days or weeks after stopping can still be difficult.