Hamsters run on wheels for a surprisingly joyful reason

Even wild animals enjoy a good wheel. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Turns out, that midnight "workout" might not be boredom or restlessness after all. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .