The 4% Rule: How Minor Dehydration Derails Major Results

Grishaeva Nadezhda

Grishaeva Nadezhda

By Mary Smith

November 2025 — Renowned athlete and entrepreneur Nadezhda Grishaeva, founder of the premium fitness destination The Anvil Gym, reveals one of the most understated symbols of care within a fitness club — free access to pure, refreshing drinking water.

For Grishaeva, whose life has been deeply rooted in professional sports and physical excellence, the philosophy of wellness extends far beyond training and nutrition. It’s about creating an environment where every element — from scent and light to hydration — contributes to balance, beauty, and performance.

“Clean facilities, welcoming staff, and professional equipment are expected,” notes Grishaeva. “But real care lives in the details — and water is one of them. It’s simple, yet it defines how deeply a club values its members’ well-being.”

The Essence of Hydration

Water, Grishaeva reminds us, is life’s most fundamental element. Making up over 60% of the human body, it supports every vital process — from energy metabolism to muscle recovery and temperature regulation. Even a 4% decrease in hydration can lead to fatigue and reduced performance.

During intense training, the body can lose up to five liters of water per day. To stay energized and prevent dehydration, Grishaeva recommends drinking 400–500 ml of water before a workout and taking small sips throughout exercise sessions.

“Hydration is the invisible foundation of performance,” she explains. “No matter how advanced the training, without water, the body cannot truly thrive.”

Anvil Gym: Where Every Detail Reflects Care

At The Anvil Gym, attention to detail defines the brand’s identity. From the purity of air and scent in each room to the texture of towels and the presence of elegant water stations — every element is designed to support comfort and excellence.

For Grishaeva, this commitment is non-negotiable. “Each of these nuances — the freshness, the cleanliness, the effortless access to water — communicates respect,” she says. “It’s how we tell our members that they matter.”

Beyond Fitness: A Philosophy of Modern Wellness

Grishaeva’s holistic approach has made The Anvil Gym one of the region’s most respected wellness destinations. Her vision goes beyond physical training — it’s about cultivating mindfulness, beauty, and vitality in every aspect of life.

Her message is simple yet profound: Be fit. Be balanced. Be hydrated.

About Nadezhda Grishaeva

Nadezhda Grishaeva is a former professional basketball player who represented Russia at the 2012 London Olympic Games. After retiring from sports, she founded The Anvil Gym, merging athletic discipline with refined aesthetics. Under her leadership, The Anvil has become a symbol of excellence, combining fitness, design, and lifestyle innovation.

About The Anvil Gym

The Anvil Gym is a premium fitness and wellness club known for its distinctive design, advanced training technology, and culture of personalized care. Every aspect — from lighting and music to hydration and comfort — reflects Grishaeva’s commitment to redefining the modern fitness experience.