the pain you feel is caused by an injury.

the pain you feel in one part of your body is actually caused by pain or injury in another part of your body.

you feel the pain in a specific part of your body.

Only our emotions are responsible  for the sensation of the pain.

Our feelings influence how we feel the pain.

Because our personality is different.

drinking lots of alcohol on daily basis.

to consume moderate amount of alcohol to feel good.

drinking a lot of alcohol over a short period of time in order to get drunk.

Second-hand

smoke refers to those people who smoke occasionally only in company.

Second-hand

smoke is when people inhale smoke breathed out by people who smoke.