The number of people these days that need some kind of aid (pills, specific mattresses, positions, sound) to sleep (barring underlying medical conditions) daily seem to be increasing at an astonishing rate
- 0 replies
- 0 recasts
- 0 reactions
CATEGORY: FAVOURITE PLAYER KID YOU: Cristiano Ronaldo TEENAGER YOU: Lionel Messi ADULT YOU: Cristiano Ronaldo
- 0 replies
- 0 recasts
- 0 reactions
Common sounds and their measurement (in decibels) Breathing - 10 dB Whisper -20-30 dB Busy street traffic - 70-85 dB Subway train - 95-100 dB Thunderclap - 120dB Jet engine - 130dB Gunshot - 140-165 dB WHO recommends that personal listening devices don't exceed 85 dB as they could damage hearing over prolonged periods Sounds of 120dB and louder usually cause pain. Sounds of 140dB and louder can damage hearing in an instant .
- 0 replies
- 0 recasts
- 0 reactions