Fitness Myths That Keep People from Getting Started

The phrase has been misread to mean that suffering equals progress. In reality, exercise science distinguishes between the temporary burn of working muscles and actual pain, which can signal injury. Mild muscle soreness 24–48 hours after a new activity — known as delayed onset muscle soreness (DOMS) — is common and generally harmless. But training through sharp, joint-based, or worsening pain increases injury risk and often sets beginners back significantly. Effective workouts can and regularly do feel challenging without being painful.

Doing hundreds of abdominal crunches will strengthen abdominal muscles but will not selectively burn fat stored over them. When the body uses stored fat for energy, it draws from fat depots throughout the body based on genetics and overall energy balance — not the muscles being used. This is well-established in exercise physiology. Building strength in a given area is worthwhile for many reasons, but expecting it to target fat in that exact location will lead to frustration rather than results.

The fear of "bulking up" keeps many women away from resistance training entirely — which means they miss out on its well-documented benefits: improved bone density, metabolic rate, joint stability, and functional strength. Building significant muscle mass requires specific conditions — very high training volumes, caloric surpluses, and hormonal environments that most women simply don't have. Moderate resistance training far more commonly produces a leaner, stronger physique than a visibly bulkier one.

Major health organizations, including the U.S. Centers for Disease Control and Prevention, frame physical activity guidelines in weekly totals, not daily minimums. These totals can be accumulated in smaller segments throughout the day. Studies have found that multiple short bouts of activity can produce cardiovascular and metabolic benefits comparable to a single longer session. For people with busy schedules, this reframing removes one of the most common barriers to starting at all.

This myth likely persists because people notice body composition changes when they stop training — muscle mass decreases over time without stimulus (a process called atrophy), and if caloric intake doesn't adjust, fat mass may increase. These are two separate processes happening simultaneously, not a transformation of one tissue into another. Understanding this distinction is practically useful: it means that taking a break from exercise isn't irreversible, and rebuilding lost fitness is generally faster than building it the first time.