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Identify and discuss causes of infertility in men and women.
Stage 4
In various developmental theories, Stage 4 can refer to distinct phases characterized by specific challenges, growth opportunities, and milestones, depending on the context of the theory being discussed.
REM Sleep
A stage of sleep characterized by Rapid Eye Movements, during which most dreaming occurs and brain activity is akin to being awake.
Strenuous Physical
Strenuous physical activities involve intense or vigorous effort that requires considerable energy and endurance.
Short Naps
Brief periods of sleep, generally lasting less than 30 minutes, intended to quickly restore alertness and performance.
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