A. True
A number of small studies of smoked marijuana found that it can be helpful in treating nausea and vomiting from cancer chemotherapy. A few studies have found that inhaled (smoked or vaporized) marijuana can be helpful treatment of neuropathic pain (pain caused by damaged nerves)
In a normal human adult, your heart beat will on average be 60-100 beats per minute. However one thing about medicine is that we never treat the numbers but the patient, and there are people who's heart rates can be lower or higher.
Additionally children and infants to tend to have higher heart rates.
Answer:
the pin will sink the wood will float
The only guaranteed method is abstinence