Start the clock, and immediately do 10 pushups in perfect form. When you’re done with the pushups, go straight into jumping jacks until the clock reads 1:00. Then move on to the next move, spider lunges (total, not per side). Do 10 of those with good form, and then jumping jacks until the minute is up. Then move on to the next move — 10 perfect reps of the jumping lunges, and then do jumping jacks until the end of the minute. And finish up with 10 perfect walkouts.
Scientists don’t know exactly why exercise changes the structure and function of the brain, but it’s an area of active research. So far, they’ve found that exercise improves blood flow to the brain, feeding the growth of new blood vessels and even new brain cells, thanks to the protein BDNF (brain-derived neurotrophic factor). BDNF triggers the growth of new neurons and helps repair and protect brain cells from degeneration. It may also help people focus, according to recent research.
Countless studies show that many types of exercise, from walking to cycling, make people feel better and can even relieve symptoms of depression. Exercise triggers the release of chemicals in the brain—serotonin, norepinephrine, endorphins, dopamine—that dull pain, lighten mood and relieve stress. “For years we focused almost exclusively on the physical benefits of exercise and really have ignored the psychological and emotional benefits of being regularly active,” says Cedric Bryant, chief science officer of the American Council on Exercise.
A 2002 study examined three groups of people. Group one, the control group, was told to track how often each person exercised throughout the week. The second group, the motivation group, was given the same instructions, but also read a motivational speech. Group three, the intention group, added on to the previous groups by asking people to create a plan that set a specific day, time and place to exercise.
At least 35% of all cancer deaths may be related to overweight and lack of activity, the Seattle Cancer Research Centre has found. Exercise is believed to speed the passage of food through the colon, thereby reducing the amount of time that any toxins are in contact with the body. Overweight people also tend to have more insulin, which promotes the growth of tumours. For women, exercise reduces the level of oestrogen, a hormone linked to breast cancer.
Love 'em or hate 'em, you can't talk about ultra-effective no-equipment exercises without mentioning burpees (especially when there's a push-up incorporated). "The burpee with push-up is a full-body exercise that works your core, arms, quads, glutes, and hamstrings," explains Harbison. "[They also] rapidly increase your heart rate, especially if you add an explosive jump at the end of the movement." Strength, check. Cardio, check.
Stand with your feet placed shoulder width apart and arms extend straight to your sides, raised at shoulder height. Now, do 50 small circles with your hands by rotating them in the forward direction. Then switch to 50 small backward circles. The backward and forward arm movement tones all the muscles of the arms including the triceps, biceps, shoulders and back muscles as well.
Not feeling up to heavy lifting? Try doing more reps at a lower weight instead and you’ll be kissing that arm fat goodbye in no time. Researchers at Canada’s McMaster University studied a group of 20-something men over a 12-week period, with half the study subjects lifting heavy weight and doing low reps, and another group lifting lighter weights for higher reps. The Journal of Applied Physiology study found that both groups increased their strength and muscle size by approximately the same amount, so if you’re relatively new to lifting or don’t feel up to hitting the heavy weights just yet, don’t worry; lighter lifts will still help you ditch the fat while gaining muscle tone.