60spf or higher
I think not sure but pretty sure that's correct
<u>Answer:</u>
The factor that contributes to aging is: A Cells stop dividing after 50 divisions.
<u>Explanation:</u>
- Normally after 40 to 50 divisions the cells stops dividing because they had already lost too much DNA for other divisions.
- So they eventually die, making the appearance like an aged person in any individual.
- As DNA is copied in every cell division process, they tend to loose small part of telomeres in each transfer process.
- Hence, after 50 divisions these cells fails to divide resulting in aging.
Another factor could be when working in healthcare you are dealing with many people who have a mental illness that can cause acceptance of violence.
Or they are dealing with people who have extremely temperamental opinions, therefore, they become violent.
Hope this helps!