Here are some examples
1. Even though stress can be managed, stress is bad for you because it can make existing problems worse and causes of stress.
2. Stress is bad for you because it can make existing problems worse and causes of stress.
3. Whereas stress can be managed, stress is bad for you given that it can make existing problems worse.
4. Since it can make existing problems worse and causes of stress, stress is bad for you.
5. Stress is bad for you even though stress can be managed.