Which of the following can negatively affect spinal health?

Extended periods of sitting can indeed negatively affect spinal health. Sitting for long durations often leads to poor posture, which places unnecessary strain on the spine. Over time, this can result in muscle imbalances, increased pressure on intervertebral discs, and potential issues such as herniated discs or chronic pain. Furthermore, prolonged sitting can weaken the core and postural muscles, making it harder for the body to support the spine correctly. Incorporating movement and changing positions regularly is critical in preventing the adverse effects associated with extended sitting, emphasizing the importance of maintaining spinal health through an active lifestyle.