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The majority of current data comes from missions of short duration and so some of the long-term physiological effects of living in space are still unknown. A round trip to Mars [56] with current technology is estimated to involve at least 18 months in transit alone. Knowing how the human body reacts to such time periods in space is a vital part ...
Perseverative cognition also focuses on the effects that worrying over anticipated events have on the physical body and mind. [2] This could suggest that obsessive worrying over past events or the future could lead to physical issues. There are some physical evidences of the effects of perseverative cognition, as noted in an analysis article. [7]
Harvard Fatigue Laboratory (1927–1947) was a research centre designed to investigate the physiological, sociological and psychological impacts of fatigue caused by daily activities, and those on the conditions that industry workers faced at the time.
Possibly related to the oddball effect, research suggests that time seems to slow down for a person during dangerous events (such as a car accident, a robbery, or when a person perceives a potential predator or mate), or when a person skydives or bungee jumps, where they are capable of complex thoughts in what would normally be the blink of an ...
Current: The higher the current, the more likely it is lethal. Since current is proportional to voltage when resistance is fixed , high voltage is an indirect risk for producing higher currents. Duration: The longer the shock duration, the more likely it is lethal—safety switches may limit time of current flow.
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...
The effect of these uncontrollable conditions and that of other physical and psychological stresses could not be separated from responses attributable to microgravity exposure alone. Thus, data relating to the physiological responses to exercise stress in Apollo astronauts must be interpreted within this overall context.
Neuroplasticity is the process by which neurons adapt to a disturbance over time, and most often occurs in response to repeated exposure to stimuli. [27] Aerobic exercise increases the production of neurotrophic factors [note 1] (e.g., BDNF, IGF-1, VEGF) which mediate improvements in cognitive functions and various forms of memory by promoting blood vessel formation in the brain, adult ...