Obesity is a health hazard but it may not be in 2079

 Too much fat is dangerous for us not only beacuse it makes us overweight but also because it causes inflammation.

American scientists have discovered fatty acids that actually resemble bacteria. Hence our immune system starts to attack them. The protein responsible for this is called TLR4. Once a drug is found that can block this protein (the search is on) then obesity may no longer be the great evil that leads to diabetes and heart disease.