1) Get out in nature

You probably seriously underestimate how important this is. (Actually, there’s research that says you do.) Being in nature reduces stress, makes you more creative, improves your memory and may even make you a better person.

2) Exercise

We all know how important this is, but few people do it consistently. Other than health benefits too numerous to mention, exercise makes you smarter, happier, improves sleep, increases libido and makes you feel better about your body. A Harvard study that has tracked a group of men for more than 70 years identified it as one of the secrets to a good life.

3) Spend time with friends and family

Harvard happiness expert Daniel Gilbert identified this as one of the biggest sources of happiness in our lives. Relationships are worth more than you think (approximately an extra $131,232 a year.) Not feeling socially connected can make you stupider and kill you. Loneliness can lead to heart attack, stroke and diabetes. The longest lived people on the planet all place a strong emphasis on social engagement and good relationships are more important to a long life than even exercise. Friends are key to improving your life. Share good news and enthusiatically respond when others share good news with you to improve your relationships. Want to instantly be happier? Do something kind for them.

4) Express gratitude

It will make you happier.

It will improve your relationships.

It can make you a better person.

It can make life better for everyone around you.

5) Meditate

Meditation can increase happiness, meaning in life, social support and attention span while reducing anger, anxiety, depression and fatigue. Along similar lines, prayer can make you feel better — even if you’re not religious.

6) Get enough sleep

You can’t cheat yourself on sleep and not have it affect you. Being tired actually makes it harder to be happy. Lack of sleep = more likely to get sick. “Sleeping on it” does improve decision making. Lack of sleep can make you more likely to behave unethically. There is such a thing as beauty sleep.

Naps are great too. Naps increase alertness and performance on the job,enhance learning ability and purge negative emotions while enhancing positive ones. Here’s how to improve your naps.

7) Challenge yourself

Learning another language can keep your mind sharp. Music lessons increase intelligence. Challenging your beliefs strengthens your mind. Increasing willpower just takes a little effort each day and it’s more responsible for your success than IQ. Not getting an education or taking advantage of opportunities are two of the things people look back on their lives and regret the most.

8) Laugh

People who use humor to cope with stress have better immune systems, reduced risk of heart attack and stroke, experience less pain during dental work and live longer. Laughter should be like a daily vitamin. Just reminiscing about funny moments can improve your relationship. Humor has many benefits.

9) Touch someone

Touching can reduce stress, improve team performance, and help you be persuasive. Hugs make you happier. Sex may help prevent heart attacks and cancer, improve your immune system and extend your life.

10) Be optimistic

Optimism can make you healthier, happier and extend your life. The Army teaches it in order to increase mental toughness in soldiers. Being overconfident improves performance.

This piece originally appeared on Barking Up the Wrong Tree.

Join 45K+ readers. Get a free weekly update via email here.

Related posts:

Living a happy life: Here are the things proven to make you happier

Which professions have the most psychopaths? The fewest?

What is the single most important life lesson older people feel young people need to know?

Read next: How to Be 10% Happier

Listen to the most important stories of the day.

Contact us at letters@time.com.