cigarette or weed which is more dangerous Cigarettes Marijuana: Harmful? The Effects of Synthetic Cannabinoids:

Aerosols derived solely from PG:VG caused the greatest changes in HR and HRV when compared with air-only exposure (Air)

pylori infection to enhance DNA damage

however, adopting healthy exercise patterns early on in life can reduce the likelihood of chronic diseases, including cancer, in adulthood

Poor sperm motility Even if sperm are produced, they may not move effectively to fertilize the egg

However, in recent years, there has been a growing movement to reduce the harm caused by smoking through measures such as higher taxes on cigarettes, advertising bans, and smoking bans in public places

A survey of 15,000 people in four countries (pdf) found that after the UK ban, there was a brief dip in false beliefs, but by 2005 we bounced back to having the same false beliefs about "safer-looking" brands as the US