Because your physical and mental wellbeing is important.
#talkingisOK - NDSA
Mental health is a state of well-being in which every individual realises his or her own potential, can cope with the normal stresses of life, and is able to contribute to her or his community. You may even know one of your friends struggling. Loving someone with a mental illness can be hard but remember, providing love, support, acceptance and patience can be more effective than you will ever realise.
Here we have a range of resources for both those directly and indirectly affected.