What factor can delay wound healing?

Poor nutritional status is a critical factor that can significantly delay wound healing. Adequate nutrition plays an essential role in the body's repair processes, as it provides the necessary nutrients that facilitate healing. Key nutrients include proteins, vitamins (such as vitamin C for collagen formation and vitamin A for skin maintenance), and minerals (like zinc, which is vital for cellular function and immune response).

When an individual has a poor nutritional status, there may be insufficient levels of these nutrients available to support effective wound healing. This can lead to impaired collagen synthesis, reduced immune response, and ultimately slower wound closure and healing times.

The other options do not contribute positively to the delay in wound healing. Excessive hydration, while excessive in some cases could be problematic, generally helps to maintain skin integrity and might aid in healing. Fresh air exposure is often associated with improved healing conditions, as it can enhance oxygenation and reduce the risk of infection. Regular exercise can improve circulation and promote overall health, contributing positively to the healing process when done within a safe framework post-injury.