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Intense 30-minute exercise gives you more brain power than regular workout durations

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Intense 30-minute exercise gives you more brain power than regular workout durations

Oct 31, 2024 12:26 PM IST

Study finds a link between brief exercise time with better mental capabilities, helping you to focus and multitask better.

A study from the University of California, published in Communications Psychology revealed a positive correlation between short workout time with better cognitive ability. Exercise has long been recognized as beneficial for both cognitive and physical well-being, but it’s typically assumed that significant improvements require extended workout sessions. However, this study focused on shorter yet intense workouts, which are more effective in improving mental capabilities.

Cycling is one of the activities that give mental clarity. (Pexels)

ALSO READ: Can you lose weight ‘fastest’ and make belly fat disappear with this 20-minute morning workout? Find out

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Short, intense workouts are more effective

The study assessed thousands of exercise-related studies conducted over the last two decades, examining the mental benefits of exercise among people aged 18 to 45. The results showed that short, intense workouts like high-intensity interval training (HIIT) or cycling improve cognitive functions more than prolonged workout regimes at a moderate pace. HIIT exercises require vigorous, high-energy efforts for a short period. The researchers called it akin to a sprint, with small breaks following the activity. The cognitive benefits become more prominent and immediate after a concise workout. This compact yet intense session gathers all the physical strength and mental focus, leaving the mind with post-workout clarity.

ALSO READ: Woman claims she lost 20 kg in just 3 months with this ‘ultimate weekly diet and workout schedule for beginners’

Cognitive improvements

Exercises lasting less than 30 minutes yielded stronger cognitive benefits than longer sessions. The mental improvements last longer. The effect is particularly prominent in executive functioning. These mental skills include working memory, planning, organising, and mental flexibility to multitask. This is one of the first studies to examine the effect of brief exercise periods on brain power. So any time you’re feeling foggy, break out in an intense workout in your break to help you re-focus.

ALSO READ: Did you have a restless night of no sleep? Study says it can affect memory and attention – even after days

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The NHS has reignited the hybrid working debate – but WFH isn’t the health risk, this is

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The NHS has reignited the hybrid working debate – but WFH isn’t the health risk, this is

The latest NHS exercise guidance reinforces what we’ve been preaching for years: hitting that 150-minute weekly movement target isn’t necessarily a get-out-of-jail-free card. It states that prolonged sedentary time is independently harmful, even for those of us who diligently carve out time for the gym. Verbatim, it says ‘prolonged sitting is harmful, even in people who achieve the recommended levels of moderate to vigorous physical activity’.

Chief Medical Officer Professor Sir Chris Whitty has been especially vocal about how detrimental it could be, highlighting hybrid working as a potential health hazard. ‘Without wanting to exaggerate, I think it’s important people think through, for example, hybrid working means quite a lot of people could very easily do very little other than leave their homes, where previously people would be routinely going to work, and that often meant at least some physical [activity],’ he said at a briefing.

I understand his logic, but it’s pretty reductive. Working from home isn’t the villain here – working from one chair is.

When we label remote work as “bad for your health”, we risk throwing the baby out with the bath water. In reality, for many – certainly the whole of the Women’s Health office, but also my less-fitness-conscious sister and stepdad, plus my entire friendship group – working from home often means being more active. It means more time to fit in a lunchtime run, to get some steps in before work, or to run some errands on a quick break.

Oscar Wong//Getty Images

Whitty suggests commuting increases incidental movement

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On the other hand, plenty of office workers are more sedentary than they are at home. They sit at a desk for nine hours straight before driving home, whether to be seen to work tirelessly in front of their manager, or simply because they’re pulled from pillar to post in an office setting. For those who do have an office commute, eliminating that often stressful period of the day allows for better sleep, and more time for the movement breaks we need to break up the dreaded sedentary time. Not to mention that many commutes are almost entirely sedentary on a train/tube/bus.

The potential problem, the advice suggests, is the lack of incidental movement – the walk to the train, the stroll to a meeting room, or heading out for lunch – that’s naturally baked into your day when you’re in the “official” office. Without a commute or a day in the office, the onus is on you to manufacture movement in.

nhs exercise guidance
Olga Pankova//Getty Images

Regular stretching counts as a movement break

Without sounding evangelical, I’ve made this a non-negotiable part of my day. On WFH days, I work out or walk every single morning before I log on, and walk again every evening, even if just a lap around the block. During the day, I have a personal rule: if I’m downstairs, I use the upstairs toilet (and vice versa). Sounds excessive, but it forces me to activate my muscles and add to my step count every few hours.

Beyond that, the options are endless if you’re intentional. Use a standing desk or put your laptop on a kitchen worktop during calls. Take every phone meeting on foot, pacing your hallway if necessary. Set a timer to stand up every 30 mins to stretch, grab a glass of water, or do a quick load of laundry.

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We don’t need to return to the office to be healthy; we need to bring movement back into our homes. The goal: to stop being professional sitters.

Headshot of Bridie Wilkins

As Women’s Health UK’s fitness director and a qualified Pilates and yoga instructor, Bridie Wilkins has been passionately reporting on exercise, health and nutrition since the start of her decade-long career in journalism.

After earning a first-class degree in journalism and NCTJ accreditation, she secured her first role at Look Magazine, where she launched the magazine’s health and fitness column, Look Fit, before going on to become Health and Fitness writer at HELLO!

Since, she has written for Stylist, Glamour, Cosmopolitan, Marie Claire, Elle, The Metro, Runner’s World and Red. Today, she oversees all fitness content across Women’s Health online and in print, spearheading leading cross-platform franchises, such as ‘Fit At Any Age’, which showcases the women proving that age is no barrier to exercise.

She has also represented the brand on BBC Radio London, plus various podcasts and Substacks – all with the aim to encourage more women to exercise and show them how. Outside of work, find her trying the latest Pilates studio, testing her VO2 max for fun (TY, Oura), or posting workouts on Instagram.   

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A Strength Coach Says These Two Exercises Are All You Need to Build Stronger Shoulders

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A Strength Coach Says These Two Exercises Are All You Need to Build Stronger Shoulders

If you ask anyone on the gym floor how to grow a bigger set of shoulders, you’ll probably find that no two answers are the same. In between front raises, upright rows, machine presses and cable raises, shoulder day can quickly become a long list of exercises.

However, fitness creator and coach Eric Evans, also known on social media as Average to Jacked, thinks most lifters are overcomplicating things. He says that if he had to start from scratch after over a decade of training, he’d strip his shoulder workouts back to just two simple moves.

‘If I had to start over today, I’d build my shoulders with just two movements: a lateral raise and also a rear delt fly,’ he explains.

According to Evans, the reason for this isn’t because those exact exercises are magic, but because they work the correct movement pattern for the muscle.

‘Your body doesn’t know the name of the exercise you’re doing,’ he argues. ‘It really only knows the fundamental movement pattern you’re asking it to perform and also the amount of tension you’re placing on the muscle.’

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So, you don’t have to perform cable lateral raises if your gym only has dumbbells, or use a reverse pec deck if you’d rather do bent-over rear delt flyes. As long as you’re training the same movement pattern and progressing the move with intensity or volume, you’ll achieve a similar result.

According to the coach, lateral raises deserve a place in your programme because they primarily target the side delts, helping create broader-looking shoulders and a more pronounced ‘V-taper’. Rear delt flyes train the back of the shoulders to create a rounder, more 3D physique.

‘I’m not including anything for the front delts, and that’s intentional,’ he says. ‘Your front delts are already heavily involved every time you do pressing exercises for your chest.’

Prostock-Studio//Getty Images

For most lifters already bench pressing, incline pressing or overhead pressing regularly, he argues the side and rear delts are more likely to be the limiting factor.

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‘I don’t think the front delts are what’s holding their shoulders back. I think it’s the side and rear delts,’ he adds.

He recommends focusing on controlling every rep, and avoiding using momentum to swing the weight. He also suggests working in the 8-15 rep range, adding reps until you reach the top of the range before increasing the load and repeating the process – also known as progressive overload.

‘You definitely don’t need to hit your shoulders from 10 different angles,’ he says. ‘You just need to consistently train these two movement patterns, push them hard and then gradually get stronger over time.’

The Bottom Line

Research suggests muscle growth is driven more by sufficient training volume, progressive overload and proximity to failure than by constantly changing exercises and programme hopping. In fact, that could hinder it. So if your shoulder workouts have become jam-packed with unnecessary variations, simplifying your approach may be exactly what helps you make more consistent progress in the long term.


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80-year-old fitness icon Joan MacDonald reveals her simple exercise for a stronger, more stable core

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80-year-old fitness icon Joan MacDonald reveals her simple exercise for a stronger, more stable core

Joan MacDonald didn’t enter a gym until she was 70. Really. Since then, the 80-year-old has transformed her health by losing three stone and building significant muscle, and now coaches other women through her training platform, Train With Joan, which she launched to help others boost their fitness at any age.

The premise of her app is simple: minimal-equipment workouts built around no-fuss, effective exercises that can be done anywhere. One ‘powerful core and stability exercise’ she swears by is alternating bodyweight clock taps. ‘This movement helps strengthen the muscles that keep you stable, balanced and moving well as you age,’ Joan explains.

Bodyweight clock taps benefits

Think they look too simple? That’s the point. Joan is adamant that ‘You don’t need complicated workouts to start getting stronger. Sometimes the most effective movements are the simple ones you do consistently.’

According to Joan, regularly performing bodyweight clock taps help:

  • ‘Strengthen your core which supports your spine and reduces strain on your lower back.
  • ‘Improve balance and coordination, helping you stay steady on your feet.
  • ‘Increase hip stability, which supports your knees and joints.
  • ‘Build functional strength for everyday movements like stepping, turning and reaching.
  • ‘Help reduce fall risk by improving control and body awareness’

@trainwithjoan/instagram//Instagram

How to do bodyweight clock taps

Find a demo from Joan above, along with instructions for how to do them with proper form below.

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  1. Stand on one leg with a slight bend in your supporting knee and brace your core.
  2. Keeping your hips level, reach your free foot forward to lightly tap the floor in front of you (12 o’clock), then return to the centre.
  3. Continue tapping to different “clock” positions—such as 3, 6 and 9 o’clock—maintaining your balance and control throughout.
  4. Complete all reps on one leg before switching sides.

Form tip: Move slowly and focus on staying stable. The goal is controlled movement, not how far you can reach.

How many reps and sets to do

Joan shares her advice, according to your fitness level.

  • Beginners: ‘3 taps per leg x 8-10 reps’
  • Intermediate: ‘3 taps per leg x 10-12 reps’
  • Advanced: ‘3 taps per leg x 12-15 reps’


woman in workout attire featured in women's health magazine for body composition plan.

One of our most frequently asked questions here at Women’s Health? How to build muscle and burn fat at the same time. So, we asked superstar trainer Oyinda Okunowo exactly how to do it. In this 4-week plan – created exclusively for Women’s Health COLLECTIVE members – you’ll get the workouts and nutrition guidance needed to help you on your way to better body composition. Tap the link below to unlock 14 days of free access to Oyinda’s plan and start training today.

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Headshot of Bridie Wilkins

As Women’s Health UK’s fitness director and a qualified Pilates and yoga instructor, Bridie Wilkins has been passionately reporting on exercise, health and nutrition since the start of her decade-long career in journalism.

After earning a first-class degree in journalism and NCTJ accreditation, she secured her first role at Look Magazine, where she launched the magazine’s health and fitness column, Look Fit, before going on to become Health and Fitness writer at HELLO!

Since, she has written for Stylist, Glamour, Cosmopolitan, Marie Claire, Elle, The Metro, Runner’s World and Red. Today, she oversees all fitness content across Women’s Health online and in print, spearheading leading cross-platform franchises, such as ‘Fit At Any Age’, which showcases the women proving that age is no barrier to exercise.

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She has also represented the brand on BBC Radio London, plus various podcasts and Substacks – all with the aim to encourage more women to exercise and show them how. Outside of work, find her trying the latest Pilates studio, testing her VO2 max for fun (TY, Oura), or posting workouts on Instagram.   

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