If your bruise worsens, begins to swell, does not fade or begin to fade within a week, occurs for no clear reason or occurs frequently for no explainable reason, you are advised to seek medical attention.
In the end, most established paranormal research groups do an excellent job separating explainable phenomenon from authentic paranormal activity.
These situations are sometimes explainable with thorough medical testing; both women and men can be infertile for a variety of reasons.
People may feel tired for no explainable reason, such as the sensation of having a general lack of sleep.
Away from land and more probably were caused by subsidence; the old river-channels known to exist below sea-level, as well as the former land connexion with New Guinea, seem to point to the conditions assumed in Darwin's well-known subsidence theory, and any facts that appear to be inconsistent with the theory of a steady and prolonged subsidence are explainable by the assumption of a slight upheaval.
Materia, matter), in philosophy, the theory which regards all the facts of the universe as explainable in terms of matter and motion, and in particular explains all psychical processes by physical and chemical changes in the nervous system.