The National Multiple Sclerosis Society, the leading global organization supporting and empowering people living with ...

People with bipolar disorder may be at a higher risk of developing premenstrual dysphoric disorder (PMDD), but neither condition directly causes the other.

Relapsing-remitting multiple sclerosis is an unpredictable disease marked by relapses and remissions, but there are options ...

Switching therapies is a common part of multiple sclerosis management and may be considered for several reasons.