Maintaining muscle mass may play a key role in preventing dementia, as aging often leads to pronounced changes such as decreased mobility and loss of strength. Age-related muscle loss is an inevitable event that affects the physical as well as the mental state of humans. New research suggests maintaining skeletal muscle can be key to supporting cognitive functions and may even play a role in preventing dementia.

A study presented at the Radiological Society of North America's annual meeting revealed that elderly patients with lower skeletal muscle mass had about a 60 percent higher risk of dementia. Skeletal muscle forms one-third of our body weight and tends to atrophy with age, and that muscle decline has broad-ranging effects, from increased physical frailty to potential cognitive decline, said Dr. Marilyn Albert, a professor of neurology at Johns Hopkins University.

The researchers measured the size of the temporalis muscle, which is part of the jaw region, as a marker of overall skeletal muscle health. Their findings showed a clear link between reduced muscle mass and an elevated risk of dementia. This connection highlights the urgent need to prioritize muscle maintenance, particularly as age-related conditions like sarcopenia and anabolic resistance pose additional challenges.

Why Muscle Maintenance Becomes Harder With Age

This begins around the age of 30. Then, there is a loss of 3-5% muscle mass every decade. But the decline is faster for those aged 50. Contributing factors include sarcopenia, an umbrella syndrome causing progressive loss of muscle and bone mass. And there is anabolic resistance - reduced skeletal muscle synthesis of protein, making it difficult to build and maintain muscle in the presence of exercise.

Despite these challenges, strength training and endurance exercises remain effective strategies to rebuild muscle and enhance overall health.

5 At-Home Strength Exercises to Build and Maintain Muscle

Fortunately, you don't need to join a gym to maintain muscle strength. Here are five simple yet effective exercises into your routine to help preserve muscle mass and support cognitive health.

1. Calf Raises

• Stand with feet shoulder-width apart. Lift onto your toes, keeping your core tight. Hold for 1-2 seconds, then lower back down. Repetitions: Perform 15 reps for 2-3 sets.
• Benefits: Improves lower leg strength and balance.

2. Plank

• Lay face-down and position forearms on the ground. Stretch legs back and curl toes under.
• Press your body against the ground, with it straight and core tight.
• Repetitions: 15-20 seconds holds for 2-3 sets.
• Benefits: Strengthens the core, shoulders, and back muscles.

3. Squat Into Chair

• Stand a half step away from a chair.
• Lower into a squat until you nearly touch the chair, extending arms forward.
• Return to standing, bringing arms back in.
• Repetitions: Repeat for 2-3 sets of 10-15 reps.
• Benefits: Strengthens the muscles in the legs as well as helps to better your posture.

4. Elevated Pushups

• Position hands on a wall with feet shoulder-width apart.
• Perform a push-up and lower toward the wall, then return to beginning.
• Repetitions: Do 2-3 sets of 10-15 reps.
• Benefits: Stretches chest, arms, and shoulders with minimal strain.

5. Wall Angels

• Stand with your back against a wall, pressing hips, shoulders, and elbows into the wall.
• Push your arms up into a "Y" shape and then back down.
• Repetitions: Do 10-15 reps for 2-3 sets.
• Benefits: Helps to improve shoulder mobility and posture.

Additional Tips for Muscle Maintenance

Safety and effectiveness are guaranteed by following the given tips:

1. Always warmup at the start and cool down at the end to avoid being injured.

2. Maintain proper posture and control during every movement.

3. Progressively increase weights or resistance bands as strength is enhanced.

4. Complete each movement slowly in order to achieve control and to avoid straining.

5. Give your muscles time to recover and rebuild between sessions.

For years, fitness culture had one rule - a workout does not count if you didn’t finish it drenched in sweat and questioning your life choices. Zone 2 cardio throws that rule out. It asks you to slow down instead of speed up. Imagine a simple walk, a lazy cycle, or a jog slow enough to chat about your weekend - that is Zone 2. You are definitely properly working, just not gasping like you have just outrun a bear. And honestly that is what everyone wants.

What Exactly Is Zone 2 Cardio?

In simple terms, Zone 2 refers to a moderate level of aerobic exercise where your body is working steadily without reaching high-intensity territory. Your heart rate rises and your breathing picks up, but conversation is still possible, even if a little breathless. The trick is holding that pace for a good while, not sprinting full on and then collapsing once the workout is done. There is no single heart rate number that suits everyone, since age, fitness level and resting heart rate all shift your personal range. That is why simply copying your friend’s smartwatch target is not necessarily useful. The easiest check? If you can still talk, you are roughly there.

How Do You Find Your Zone 2 Heart Rate?

If you want to measure your personal range, start with calculating your maximum heart rate. The standard formula is:

Maximum heart rate = 220 - your age

This gives you an estimate, rather than an exact measurement. If you want precision a supervised stress test gives a proper reading. Once you have that number, Zone 2 sits at roughly 60 to 70 percent of it. Multiply by 0.6 for the lower end and 0.7 for the upper end, and there is your range. Your resting heart rate is worth knowing too, usually 60 to 100 beats per minute for most adults. It will not change the maths above, but it says something about your general fitness.

The Talk Test Is Your Shortcut

Start with speaking in full sentences, pausing now and then for breath, and you are officially in Zone 2. Another way is to sing along to the radio without missing a beat, and steadily picking up the pace. If you are struggling to get out more than a word or two, slow down, do not hurry. It is never as exact as a heart rate monitor, but it works.

What Are The Benefits Of Zone 2 Cardio?

Regular aerobic activity supports heart health, and official guidelines recommend 150 to 300 minutes of moderate exercise a week, plus strength training on two or more days. Zone 2 makes that target feel achievable rather than punishing. Walk, cycle, swim, jog or row, whatever you do, it definitely counts.

Is Zone 2 Cardio Safe?

For most healthy adults, yes, absolutely, it is about as low risk as exercise gets. If you are new to working out, then start slow and build from there. If you have a medical condition, have barely moved in months, or notice chest pain, dizziness or serious breathlessness while exercising, talk to a doctor first. And remember, the 220-minus-age formula is a quick estimate, not definitive.

Certain moments that look ordinary, like a missed landing after a box jump, a sudden pivot on the basketball court, or a squat jump gone wrong at the gym, are behind some of the most common knee injuries orthopaedic doctors treat every week.

The anterior cruciate ligament, commonly known as ACL, is located deep inside the knee and works to keep the shinbone from sliding too far forward. A study was conducted in 2025, covering sports-related knee and shoulder injuries among athletes in Haryana, one of India's leading Olympic-medal-contributing states. The study found ACL rupture to be the single most common injury, accounting for close to 61% of cases. The same study found that knee injuries make up about 41% of all sports-related trauma, with the ACL responsible for roughly a fifth of that share.

Separately, a five-year study of sports injuries in Haryana found ACL rupture to be the leading injury among young athletes, with the majority of affected patients between 16 and 20 years old. These numbers point to a pattern orthopaedic doctors see often among the cases, which is young people get hurt more often during ordinary training, not just in high-level competition.

The Landing Problem

Most people focus on how high they can jump, but only a few think about how they land. A stiff landing, with knees locked or barely bent, sends the full force of impact straight into the knee joint instead of spreading it across the hips, knees, and ankles. Doctors also watch for a pattern called knee valgus, where the knees cave inward as a person lands or changes direction. This inward collapse puts significant strain on the ACL and is one of the clearest warning signs seen during a clinical assessment.

Fatigue makes this worse. Toward the end of a workout or a match, muscles tire and control weakens. This is when landings tend to get sloppier, form breaks down, and injury risk climbs, particularly during the last few reps of a session or the final minutes of a game.

Also read: Dream Of Becoming A Footballer Or Cricketer? Cardiologists Reveal Heart-Healthy Habits For Young Athletes

Common Gym Mistakes

Several habits come up repeatedly in orthopaedic clinics:

• Jumping onto boxes or platforms without practising a controlled landing first
• Skipping a proper warm-up before explosive movements such as squat jumps or burpees
• Progressing to heavier loads or higher jumps before building basic strength in the hips and glutes
• Ignoring persistent knee discomfort instead of resting and getting it checked
• Training on hard or uneven surfaces without appropriate footwear

Weak hip and glute muscles are a recurring factor. When these muscles cannot control the leg properly, the knee ends up compensating, and that shifts strain onto the ACL and surrounding structures. The Haryana study also found that kabaddi and wrestling accounted for the highest share of these injuries, sports that involve repeated pivoting, gripping, and sudden changes in direction.

What Helps?

Orthopaedic doctors generally recommend building strength in the hips, glutes, and core before increasing the intensity of jump training. Practising soft, controlled landings, with knees bent and aligned over the toes rather than caving inward, makes a measurable difference. Gradual progression is equally as important. Increasing jump height, load, or intensity too quickly does not allow the muscles and ligaments time to adapt.

Persistent knee pain, swelling, or a feeling of instability after jumping or pivoting should never be pushed through. These are signs worth getting evaluated early, since catching a problem before it becomes a full tear usually means a simpler and shorter road to recovery

You may not need to workout for hours to start moving more. A few minutes of vigorous physical activity woven into everyday life may be linked to a lower risk of several cancers, according to new research.

The study, published in BMC Medicine recently, examined 59,218 adults from the UK Biobank who wore activity trackers. With an observation and follow-up of eight years, 2,385 participants developed cancers at 13 sites previously linked to physical inactivity.

Researchers found that replacing just 3 minutes of another activity with vigorous physical activity (VPA) was associated with about a 4% lower risk of these cancers.

The link was seen when vigorous movement replaced light activity, moderate activity, sedentary time or even sleep.

Are Vigorous Movements Beneficial?

Also read: Water Or Electrolytes? Biggest Hydration Mistakes First-Time HYROX Athletes Make

Vigorous physical activity means movement intense enough to substantially raise the heart rate and breathing. It does not necessarily mean going to the gym. It also does not mean high intensity interval training (HIIT).

Short bursts of vigorous movements can include running to catch a bus, climbing stairs quickly, walking uphill at a fast pace or carrying heavy shopping, It basically includes any movement that could get your heart racing for a few seconds or a minute.

This type of brief, incidental movement is sometimes described as vigorous intermittent lifestyle physical activity, or VILPA.

Earlier research from the same research group found that among adults who reported no structured exercise, around 3.4 to 3.6 minutes of VILPA per day was associated with a 17% to 18% lower risk of developing cancer overall.

About 4.5 minutes a day was associated with a 31% to 32% lower risk of cancers associated with physical activity.

More Movement Is Not The Answer

Also read: Is the Gym Building Your Brain More Than Your Body?

The latest study does not mean that vigorous physical movement is the ultimate answer to prevent cancers. It just means that it looked beyond vigorous exercise and examined how people divided their entire 24-hour day between sleeping, sitting, standing and different levels of physical activity.

The findings suggested that any movement could be better than remaining sedentary.

Replacing 15 minutes of sitting and scrolling or sleeping with 15 minutes of movement was associated with about a 2% lower cancer risk. Replacing sedentary time or sleep with around 30 minutes of standing was also associated with lower risk.

However, vigorous activity appeared to have the strongest association. The researchers found that the VPA component was particularly important when moderate-to-vigorous physical activity was considered as a whole.

What Does This Study Imply?

The study is observational, meaning researchers looked at existing patterns of physical activity and subsequent cancer diagnoses. It cannot prove that three minutes of vigorous movement directly prevents cancer.

The researchers also studied a composite of 13 cancers associated with physical inactivity rather than claiming that every cancer can be prevented through exercise.

However, the findings add to growing evidence that physical activity does not have to mean long, structured workout sessions in the gym to be meaningful.