AEDs Arrive. Around 1980, the AED (automated external defibrillator) debuted. The 'automated' part is what is really exciting. Now people with only minimal training can successfully revive VF victims in the field, even before Emergency Medical Services personnel arrive.
Sensitivity has many shades of meaning but most relate to your response to your environment â either physical or emotional. Sensitivity to cold means youâre quick to notice the slightest chill â in the air or in another personâs actions. A sensitivity to pollen means youâre sneezing any time itâs in the air â you just always seem to react to it. Itâs the same with emotions â sensitivity means you pick up on the feelings of others.
Sensitivity to temperatureâusually cold but also heatâis a classic symptom of the pulp of the tooth being inflamed. If your tooth is sensitive to heat, that is a distinct problem and I have a page that addresses that specifically.Here are some possible causes if your tooth is sensitive to cold:1  Deep decay. 2  See your dentist right away. 3  When a tooth is just mildly irritated by cold, the problem can usually (but not always) be fixed with a restoration such as a filling or a crown. Exposed roots. 2  If your gum has receded or if the enamel or cementum of your tooth has worn to where the sensitive part of the tooth is exposed, it can make your tooth experience pain from cold. 3  A filling or protective coating can keep your tooth from becoming too irritated.