What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own?
1 Corinthians 6:19
"NBC News highlighted a recent study
that shows that not only does smoking pot impair numerous mental
functions of the user, but these effects can linger for weeks after use
has stopped. 
The Canadian study was one of those meta-reviews that
analyzes data from multiple existing scientific studies to discover
overarching trends. What it found was that, every time someone gets
high, they can be dumber for weeks.
Hardest hit was the ability to learn
from what one hears and to remember things.
Also particularly affected is the
stoner’s ability to focus or pay 
attention and to process information.
Smaller deficits were also recorded for executive functioning,
decision-making, inhibitory processes, and flexibility.
Although acute intoxication can last several hours, research has
revealed that THC is a fat-soluble compound that may be stored in body
fat and, thus, gradually released into the bloodstream for months.
And not only does pot make people stupid, but it can also make them
crazy. This is particularly true among heavy users and younger users
whose brains are still forming. Narcanon notes
that chronic use of today’s super-jacked weed can induce panic attacks,
paranoia, wild mood swings, fragmented thoughts, depersonalization
(losing one’s sense of identity), and straight-up psychosis." PJMedia