Substance use and addiction can contribute to the development of mental illness. Substance use can lead to changes in some of the same brain areas that are disrupted in other mental disorders, such as schizophrenia, anxiety, mood, or impulse-control disorders.
weight control
 adults with excess weight had a 55% higher risk of developing depression over their lifetime compared to people that did not struggle with obesity. Other research linked being overweight with significant increases in major depression, bipolar disorder, and panic disorder or agoraphobia.
save sex for marriage
It reduces stress, boosts immune and enhances our mood. Obviously it's burning up energy, just as exercise does. But it also releases some of our natural feel-good chemicals such as oxytocin, dopamine, serotonin and endorphins. So sex, including masturbation, has been shown to ease stress, depression and anxiety.

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eat
When you stick to a diet of nutrient-rich foods, you're setting yourself up for fewer mood swings and an improved ability to focus. Studies have even found that clean diets consisting of mainly whole, unprocessed foods, can help with symptoms of depression and anxiety.
exercise
Physical activities - like walking, biking, dancing, yoga, or tai chi - can help: Reduce feelings of depression and stress. Enhance your mood and overall emotional well-being. Increase your energy level.
stress free
stress has a psychological impact that can manifest as irritability or aggression, a feeling of loss of control, insomnia, fatigue or exhaustion, sadness or tears, concentration or memory problems, or more. Continued stress can lead to other problems, such as depression, anxiety or burnout. Emotional symptoms of stress include: Becoming easily agitated, frustrated, and moody. Feeling overwhelmed, as if you are losing control or need to take control. Having a hard time relaxing and quieting your mind. 

avoid drugs
Stimulant drugs can make you feel depressed, anxious and paranoid. Cocaine – a type of stimulant – can make previous mental health problems recur and trigger psychosis and schizophrenia. Ecstasy users can experience memory problems. Hallucinogenic drugs such as magic mushrooms can make any mental health issues worse.
weight control
Losing weight helps improve many aspects of your emotional health, such as sleep, energy, vitality, and mood. All of these can have a direct impact on your confidence, personal outlook, body image, sex life, and social life.
save sex for marriage
Sex can be incredibly beneficial for us physically and emotionally. It reduces stress, boosts immune and enhances our mood. Obviously it's burning up energy, just as exercise does. But it also releases some of our natural feel-good chemicals such as oxytocin, dopamine, serotonin and endorphins.

Drugs can also cause users to become paranoid about their relationships, like thinking that their friends are turning against them. Drug users may even become aggressive and violent toward other people, even their family and friends. For these reasons and more, drugs can destroy friendships.

weight control
ndividuals with obesity are less likely to marry, typically earn less money, and even experience discrimination in the healthcare setting when compared to peers who weigh less. 1 In developed countries, there is an inverse relationship between obesity and socioeconomic status.
save sex for marriage
Here's what researchers found: participants who had engaged in sexual activity experienced a boost of positive emotions (feeling enthusiastic, happy, satisfied, or excited) and meaning of life as well as a drop in negative emotions (feeling embarrassed, disappointed, anxious, or sad) the following day.