No, you won't feel lazy or fat—you'll feel liberated

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For many things in life, it's best to give a f*&!. Think: your job and your bills. But on the flip side, there are things that don't deserve a care in the world, things that are zapping you of your energy and keeping you from achieving your goals.

Enter: The Life-Changing Magic of Not Giving a F*&!, by Sarah Knight, a book that aims to help you prioritize what's really important in life. Knight suggests making a "F*&! Budget," a list of things to care and to not care about, so you can live your best and healthiest life ever. No exaggerations. What exactly can you gain from letting things go? Below, the road to f*&!-free bliss.

You'll Go to the Gym

"By not giving a f*&! about attending someone's ill-conceived ten o'clock Tuesday night dinner party (WTF?), you can stay sober, rest up, and be bright-eyed and bushy-tailed on Wednesday for your date with the elliptical machine," says Knight. (Try this 10-minute Cardio Blast with all that extra morning time.)

You'll Stave Off Disease

"Just think of what might happen if you stop giving a f*&! about sitting through Sunday church services (sorry, Pope) and instead dedicate that f*&! to completing the Sunday Times crossword puzzle every week. Future you, not suffering from Alzheimer's is hugely appreciative!" says Knight. And she's not kidding. A study done by researchers at the University of California, Berkeley showed that crosswords help decrease of your risk of getting Alzheimer's. Whether or not you like brain exercises, replacing a stressful activity with a positive one can help you reap the same benefits.

You'll Sleep Better

In times that you're tossing and turning about your To Do list for the next day, "Say to yourself 'it's just not worth it' and move on," Knight says. Even if it's only until the next morning-your body will thank you. (Check out these 13 Expert-Approved Sleep Tips if you're still counting sheep.)

You Won't Get Headaches or Anxiety

"Anxiety spells extraneous f*&!s given every time," says Knight. And anxiety isn't the only side effect. A study by the American Academy of Neurology showed that stress (read: extraneous f*&!s) really does cause headaches. By casting away your cares, physical pain will leave along with it.

You'll Be a Better Friend

"By not giving a f*&! you're taking care of yourself first-like affixing your own oxygen mask before helping others," says Knight. So by saying no to things, you become more aware of what you can and cannot handle-which is better for you, and everyone you know.

You'll Feel Liberated

"Not giving a f*&! means releasing yourself from the worry, anxiety, fear, and guilt associated with saying no, allowing you to stop spending time you don't have with people you don't like doing things you don't want to do." We couldn't agree more.

So go forth and make your list, knowing that these benefits aren't far in the distance.