yes it does, by as much as 20 percent
a zoo is a place animals are kept in cages
It depends. If they are at zoos they need to be kept in cages. In the wild you should set them free, let them roam, live their own life.
Because caged animals are usually either bored or stressed, and eventually they can develop mental problems.
If AF refers to Atrial fibrillation, yes, it can shorten your life.
Normally there are small cages, dead body's left in the cages, and a life of pain... some of the chemicals testers use react differently to the animal's skin that would to ours, causing burns, blisters, and open wounds.
Most cases produce symptoms but do not shorten life expectancy.
In some cases, it is for the animals protection. For example, if they have caught a tiger that they wish to move to a safer habitat, having the tiger in a cage makes it safe for both the animal and people. Or if it is injured, and should be kept still as possible for healing purposes, it is better they have a confined area. But this should not be for the rest of the animals life. Animals were never meant to be in cages, they were meant to live on earth as humans are. i completely disagree i think animals should run free without fences or people live a life freedom
Some mild upgrades can actually lengthen the life. It's the major upgrades that can shorten the life.
it can shorten your life span because i am 16 and the specialist told me that i could die in my 30s because of it
NO!!
No.
Most likely