During which period of time?
Answer: This is an example of Tolerance
Explanation: When there is repeated use of drugs, the body gets familiar with the drugs and thus reduces the effects of the drug in the body. Hence, the need to increase the dosage in order to start feeling the effects again. This is exactly what is happening to Tayla in the example given above; her body system became tolerant of marijuana and she needs it in higher dosage in order to achieve the previous effect it had on her.
He lived for 32 years.
There are a couple of ways he is believed to have died, this includes;
-Alcoholic liver disease
-Strychnine poisoning
although there is little evidence.