How does cohesion of skin layers change with age?

As individuals age, the cohesion of skin layers, specifically between the epidermis and dermis, tends to decrease. This decline is attributed to various biological changes that occur in the skin, such as reduced collagen and elastin production, which affects the tensile strength and elasticity of skin layers. These structural changes make the skin more prone to fragility and injury, particularly in the elderly population.

In very young individuals, skin is generally more pliable and resilient, leading to stronger inter-layer cohesion. However, as one ages, the degradation of structural proteins and the overall skin architecture leads to a weaker connection between skin layers.

Therefore, the correct response indicates that this decreasing trend occurs both in the very young and very old, highlighting the fundamental changes in the skin’s integrity associated with different stages of life.