because older people become weak
An accident - bump to the head - illness - tumor, alzheimers - age - go take him to a vet!
Certainly, as we get older our bodies get more and more ineffective at thermo-regulation, similarly the very young (below the age of 4) also have poor thermo-regulative capabilities.
Thomas EDison had no illness, he just died of old age.
His illness brought him death at an early age.
infants
Age, illness, predators...
No, your age would not increase. The rate at which you age would increase, but not your actual age. You don't travel into the future just by traveling to a different planet.
Typically a betta will increase in colour, and in some cases change colours somewhat as they age. If your betta begins to lose it's colour, check for water quality problems or an illness.
he died from an illness that is unknown, or old age
Cancer. 19.
old age
intelligence and understanding ability tends to increase with age.