Seafood is always a great choice for protein if you’re young and female, right? Not so fast.

In middle age, taking care of yourself now could mean avoiding a health crisis later — and that may go double for diabetes patients. Middle-aged diabetes patients may have a raised risk for mental decline later in life.

For young people, type 1 diabetes may raise the likelihood of having multiple sclerosis. Scientists now suspect that certain environmental factors may play a role.

Adults need around 4,000 to 8,000 IU daily of vitamin D to maintain levels of healthful vitamin D metabolites in the range needed to reduce the risk of several diseases by about half.