The irritant alarm is easy to induce heart disease

Its indicated that if the alarm sound is loud, it is easy to make people feel frightened, so that it may cause the vasoconstriction, speed up the heartbeat, induce or aggravate heart disease, cerebral arteriosclerosis, myocardial infarction and so on. The irritant ring will also let person's nervous system become highly anxious; possibly will lead to the dyspepsia, not good appetite, the constipation or the diarrhea and so on.
In addition, because of long time being awakened in the stimulation sound, the endocrine system is easy to disorder, which possibly leads to irregularis menstruation, easily perspireand so on. The alarm sound will affect person's mood as well. It will be excited after being awaken. For a long time, it will be easy to cause the human to be anxious, the attention not centralized, depressed even insomnia.
Suggestions :

• Set up the ring with slow rhythm, temperament melody and not noisy sound volume.
• Do not place the alarm nearby the pillow. It must be put on the low furniture 1 meter away from the pillow.
• Do not use the mobile phone to set up the alarm as mobile alarm will increase the radiation intensity.