Health benefits due to physical activity

[NewCreation435]

"The U.S. Department of Health and Human Services 2008 Physical Activity Guidelines for Americans recommends that, for substantial health benefits, adults engage in at least 150 minutes (2 hours and 30 minutes) of moderate-intensity aerobic physical activity, 75 minutes (1 hour and 15 minutes) of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity activity, every week. Aerobic physical activity should be performed in episodes of at least 10 minutes, preferably spread throughout the week. Examples of moderate-intensity and vigorous-intensity physical activities can be found on CDC’s Physical Activity website."

https://www.cancer.gov/about-cancer/causes-prevention/risk/obesity/physical-activity-fact-sheet

This same web page indicates that physical active people have a lower rate of some cancers

 

[Lamb]

The link you gave also stated this: "Data from observational studies can give researchers clues about the relationship between physical activity and cancer risk, but such studies cannot definitively establish that being physically inactive causes cancer (or that being physically active protects against cancer). That is because people who are not physically active may differ from active people in ways other than their level of physical activity. These other differences, rather than the differences in physical activity, could explain their different cancer risk. For example, if someone does not feel well, they may not exercise much, and sometimes people do not feel well because they have undiagnosed cancer."

I'm finding more and more of my friends on Facebook having cancer as the years go by. Even those who are physically active. On the former block where I lived there are neighbors coming forward with their cancer stories but it's not all the same cancer. When I was growing up it was rare to hear about cancers. Now it's commonplace.

 

[NewCreation435]

The link you gave also stated this: "Data from observational studies can give researchers clues about the relationship between physical activity and cancer risk, but such studies cannot definitively establish that being physically inactive causes cancer (or that being physically active protects against cancer). That is because people who are not physically active may differ from active people in ways other than their level of physical activity. These other differences, rather than the differences in physical activity, could explain their different cancer risk. For example, if someone does not feel well, they may not exercise much, and sometimes people do not feel well because they have undiagnosed cancer."

I'm finding more and more of my friends on Facebook having cancer as the years go by. Even those who are physically active. On the former block where I lived there are neighbors coming forward with their cancer stories but it's not all the same cancer. When I was growing up it was rare to hear about cancers. Now it's commonplace.

I don't remember it being rare. I just remember if you got cancer you typically died from it. They survival rate was much lower.
Good scientific studies will rarely say "this causes this", but will usually talk about a correlation between the two