The Science of Staying Strong After 35

Staying competitive and injury‑free as you age requires more than willpower—it demands an understanding of the physiological changes occurring in your body. One of the most important yet often overlooked shifts is the gradual decline of collagen, the fibrous protein that forms the scaffolding of our connective tissues. Collagen makes up roughly one‑third of all the protein in the human body and about 70 % of the collagen fibres within cartilage giving our joints and muscles the strength and resilience needed to absorb impact and generate power. After your mid‑twenties, however, the body’s ability to replenish collagen falls by about 1.5 % per year By the time you reach 40 you may be producing nearly a quarter less collagen than you did in your prime, which can manifest as slower recovery, increased joint stiffness and a greater risk of injury.

Why collagen matters

Collagen isn’t just a cosmetic buzzword; it is a structural powerhouse. Type I collagen forms the framework for skin, bones and tendons, while type II collagen is the main component of articular cartilage. Researchers at the Hospital for Special Surgery describe collagen as the most abundant structural macromolecule in the extracellular matrix of cartilage and note that it constitutes roughly 60 % of cartilage’s dry weight importantly, type II collagen represents 90–95 % of all collagen in cartilag, intertwining with proteoglycans to provide the tensile strength that cushions our joints during movement.

As collagen production slows, the architecture of cartilage changes. Less collagen means fewer fibres to resist stress, leading to cartilage thinning and increased friction. At the same time, the decline in collagen affects tendons, ligaments and muscle fascia, which can compromise stability and power output. This explains why mid‑life athletes often notice more creaky joints, longer recovery times and a higher incidence of soft‑tissue injuries.

Signs of collagen decline

The early signs of collagen loss can be subtle—slight stiffness in the morning, reduced flexibility or a nagging ache after a tough workout. Over time, the reduced ability to repair micro‑damage may contribute to more serious problems such as joint degeneration. Because chondrocytes (the cells that maintain cartilage) also decline with age, the ability to replenish damaged tissue is further compromised.

Strategies to stay strong

1. Support collagen formation through nutrition and supplementation. Hydrolysed collagen peptides provide the building blocks (glycine, proline and hydroxyproline) that your body needs to rebuild collagen structures. Preliminary studies suggest that ingestible collagen can improve joint comfort and function, particularly when combined with vitamin C, which is necessary for collagen synthesis. Artron Collagen’s patented WELLCARTILAG® Complex delivers bioactive collagen peptides alongside hyaluronic acid, glucosamine and other cofactors to optimise absorption and utilise them where they are needed most.
2. Maintain an active lifestyle. Joint motion and load are essential for healthy cartilage metabolism. Biomechanical studies show that regular movement and dynamic load help maintain articular cartilage, whereas joint inactivity leads to cartilage degradation. Incorporate low‑impact activities such as cycling or swimming to keep joints nourished without excessive stress.
3. Protect natural collagen. Limiting sun exposure, avoiding smoking, managing stress and getting adequate sleep can all help preserve the collagen you already have. A balanced diet rich in protein, whole grains, fruits and vegetables supplies the amino acids and micronutrients needed for collagen synthesis.
4. Consider structured supplementation. Not all collagen products are equal. Look for hydrolysed collagen peptides backed by clinical research and formulated with complementary ingredients. Artron Collagen’s WELLCARTILAG® Complex is protected by European patent EP 2695610 and was shown in a double‑blind, placebo‑controlled study of 120 volunteers to improve joint mobility and energy levels after 90 days.

Conclusion

Collagen loss is an unavoidable part of aging, but it doesn’t have to spell the end of athletic ambition. By understanding how collagen supports your joints and muscles and taking proactive steps—staying active, eating well, protecting your skin and considering targeted supplementation—you can maintain strength and resilience well beyond 35. For those pushing the limits of performance, Artron Collagen’s comprehensive formulation offers a science‑backed way to replenish the building blocks your body needs to stay strong.