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The certification applies to somatic death, corresponding to death of the person, which has varying definitions but most commonly describes a lack of vital signs and brain function. [9] Death at the level of cells, called molecular death or cell death , follows a matter of hours later. [ 10 ]
Without special treatment after circulation is restarted, full recovery of the brain after more than 3 minutes of clinical death at normal body temperature is rare. [6] [7] Usually brain damage or later brain death results after longer intervals of clinical death even if the heart is restarted and blood circulation is successfully restored ...
Terminal lucidity is a narrower term than the phenomenon paradoxical lucidity where return of mental clarity can occur anytime (not just before death). [ 4 ] [ 5 ] However, as of 2025 [update] , terminal lucidity is not considered a medical term and there is no official consensus on the identifying characteristics.
Pregnancy can normally occur with this type of decreased flow during the period. The incidence of infertility is the same as in women with a normal blood flow. Constitutional scanty menstruation is perhaps best explained by assuming the presence of an unusual arrangement, or relative insensitivity, of the endometrial vascular apparatus.
Cadaveric spasm is seen in cases of drowning victims when grass, weeds, roots or other materials are clutched, and provides evidence of life at the time of entry into the water. Cadaveric spasm often crystallizes the last activity one did before death and is therefore significant in forensic investigations, e.g. holding onto a knife tightly. [4]
A near-death experience (NDE) is a profound personal experience associated with death or impending death, which researchers describe as having similar characteristics.
One-third of women will experience abnormal uterine bleeding in their life. Normal menstrual cycle has a frequency of 24 to 38 days, lasts 7 to 9 days, so bleeding that lasts longer could be considered abnormal. Very heavy bleeding (for example, needing to use 1 or more tampons or sanitary pads every hour) is another symptom. [19]
Conversely, premature death can refer to a death that occurs before old age arrives, for example, human death before a person reaches the age of 75. [78] Animal and plant cells normally reproduce and function during the whole period of natural existence, but the aging process derives from the deterioration of cellular activity and the ruination ...