No, you do not need spousal consent and to require is a HIPAA violation, most likely.
No, there is no minimum age, aside for 18, the age of consent. NYC has a minimum age of 21.
The Official Blog of Richard A Schoor MD FACS Smithtown Long Island Urologist
How does pot affect sperm? Better question is how doesn't it affect sperm.
Decreases LH and FSH release
Attaches to sperm head and tails
Decreases sperm production
Promotes loss of spermatogonia
Smoking-bad for sperm
Abdominal obesity-bad for sperm
Sedentary lifestyle-bad for sperm
Tell a patient, "lose weight", "eat better", "exercise" -worthless for sperm
Better approach- SMART
1: Walk track once this week and call me to tell me
2: Eat one vegetarian meal next week.
3: Go one day without smoking.
Small, manageable, achievable, relavent, and testable goals. Now that is SMART.