Boost your mood.
Happiness can be contagious. Spending time with friends who were happy and positive can improve your mood and expectations.
Helping you to achieve the goal.
Are you trying to lose weight, or improve your life, encouragement of friends can actually boost your spirit and your chances of success.
Reduce stress and depression.
Having an active social life can boost your immune system and help reduce the isolation, the main factor causing depression.
Support you through difficult times.
Even if you only have one to share, a friend can help you cope with a serious illness, loss of a job, a loved one, the breakdown of a relationship, or other problems in life.
Support you as you age.
When you start aging, retirement, illness, and death of loved ones often cause you are isolated. Having people who can accompany and support can make you have a new goal and a buffer against depression, disability, hardship, and loss. Stay socially engaged although age getting older makes you feel positive and increase your happiness.
Friendship is a two-way relationship, and the "give" in the relationship of give and take makes you valuable. May be beside your friends make you feel needed and adds to your life goals.