I’m pretty sure STDs like chlamydia, herpes and hepatitis can be transmitted with ways other then sexual contact such as contaminated food, borrowing unclean towels
The stomach lining replaces mucus itself every few days
They are both highly selective,most of the time what binds to them. Think of it as a lock and key, if the key fits the lock and it turns then it does what it needs.
1 - inhale for 3 seconds, hold breath for 4 seconds, and breath out for 7 seconds.
2 - find a stable aspect of your life and focus on it in moments you think a panic attack is going to happen or is happening
3 - step out of the situation on hand