Whatever your age, breakouts have similar causes. Hormones play a big role: Your body starts producing them during puberty and continues through adulthood, flaring back up in your 40s. Controlling your diet can help.
Try to minimize intake of dairy and sugary snacks and drinks, which can worsen acne. Stress is another trigger. To relax, participate in a stress-reducing activity regularly. Exercise, meditation and yoga are good options.