Have a walnut. Forgive a friend. Repeat what you’ve learned. There’s a long list of simple lifestyle tweaks that are actually powerful enough to change your life for the better. So try one of these – or all of these and get ready to be healthier and happier. These come from Oprah’s “O” magazine.

  • Let’s start with those walnuts. They can help you avoid cirrhosis of the liver. You may say, “But John, I don’t drink; I have nothing to worry about.” Not true. Thanks to our fatty carb-heavy American diet, millions of us are on the path to liver inflammation and cirrhosis – even if you’ve never touched a drink. The early symptoms are fatigue and a sense of melancholy. To prevent it, or reverse it, try eating an ounce of walnuts daily. They contain liver-healthy omega-3s.
  • When you learn something, say it out loud. Kids – hear this: The more actively you engage your brain in the learning process, the more likely you are to retain what you learn. That’s according to Harvard Medical School. In fact, repeating information – like the name of a person, a phone number, or some detail for your history exam – increases your retention. So in a conversation with the boss, you might say, “So you’re saying blah, blah, blah. ” Not only will the boss know you’re listening, but you’ll also really absorb what he’s saying.
  • Practice the phrase “I forgive you.” It’s easier said than done, but after an argument, think about forgiveness. According to Eileen Borris, author of he book Finding Forgiveness, choosing to forgive helps us see the situation through understanding and compassion. By making the problem yours to forgive, you’re giving yourself a profound sense of control. How about the consequences of holding a grudge? Increased blood pressure, heart disease, a weakened immune system and impaired brain and memory function.
  • When you wake up in the morning, get out of bed and into the shower. While you’re there, try to remember one of yesterday’s headlines. It’s a one-two punch of physical and mental activity that’ll rev your brain and body simultaneously.