Doesn’t matter if you walk or just sit, do some gardening, or merely ponder your existence. It’s well established that spending more time outside will improve your mood, especially if you can find some green space. As an added benefit, natural daylight triggers chemical changes in the brain that let us know it’s time to be awake and alert, which in turn helps the brain and body know when it’s time to sleep—both good mood boosters on their own.

Go outside

<ul><li>Breathe in through your nose, as deeply as you can.</li><li>Fill your belly first — feel it expand — then your chest.</li><li>Finally, with the last little inhale, feel your collarbones lift.</li><li>Hold it for an instant, then let it all out through your nose.</li><li>Almost done. Now use your stomach to push the last of it out your mouth.</li><li>Repeat two times (or do a longer session for total relaxation).</li></ul>You’ve just increased the levels of oxygen and feel-good chemicals in your blood, which is good for your brain and your body.

Take three deep breaths

Doesn’t matter what you actually do. A long, hot bath. A totally aimless walk around the neighborhood. Lunch in the park. Visit a friend. Take a nap. Read a book.Whatever it is, don’t involve your phone, computer, or any other communication device. Turn them off, check out for a stretch, and make sure anyone who might need you knows you’re incommunicado.

Schedule time for yourself

If you’re compelled to make a new to-do list, keep it short. No more than one or two things that can be knocked off today. Get them done. Pat yourself on the back and have a cookie. Then forget about to-dos until tomorrow. Repeat.

Throw out your to-do list

We are all creatures of habit, and a lot of our habits suck. Changing them is hard. One great trick is to piggyback a new habit onto an existing one. First, come up with something easy that you think you could manage every day. Now stack that new behavior onto something you do daily.

Start one new positive habit

Loneliness is one of the biggest hurdles to our collective mental health and well-being, now more than ever. And each of us, lonely or not, craves social connection. So, think of someone you care about who hasn’t heard from you in a while, and send them a short note. Just say hello and ask how they’re doing.

Text or email a friend

We humans are often unaware of the positive effect we can have on another person by simply recognizing their existence, perhaps offering a smile or a kind word, and how good such acts are for our own mood. Wave to a neighbor you usually ignore. Compliment the bagger at the grocery checkout. Come up with just about any excuse to thank a nurse.

Acknowledge someone

If you’re feeling stressed or depressed or just blah, dig deep into your mind to figure out what’s behind it. The key to any successful stress-reduction strategy is to first figure out what’s bugging you. Is there a single cause? Great! But often there isn’t anything specific, which indicates your stress is caused by anxiety — worry over things you can’t even define. Either way, put the damn thought (or feeling) into a mental box and commit to addressing it at some specific later time.

Put one bad thought in a box

Science-backed ways to improve your mental state and feel better right now. And don't worry, "exercising" is not on the list.

Put one bad thought in a box

8 Simple But Effective Mood Boosters

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