Unexplained Headaches / Migraines
Something was said on another blog about headaches and old televisions.
It got me to thinking.
Tones, high pitched noises can be quite painful.
Tones that you can not hear can be worse. Wait tones you can’t hear?
Of course. humans hear a range of tones, as you age this range decreases. When young and perfect we can hear from 20 hz to 20 khz.
hz stands for hertz khz is Kilohertz, so a thousand times more, which is a higher pitched sound.
The human ear can hear up to perhaps 20 khz when young, as you age this drops. If you can’t hear the 8 khz tone you perhaps should have a hearing test. Speakers too, may not generate tones that are very high, some can of course, perhaps yours can not. On my lap top I heard the 20 khz tone. Dogs hear 40 to 60 khz.
The high pitched sounds are annoying, painful. They cause a pressure in your ears, even when you can not hear them, you may feel a pressure that hurts. These sounds can become quite high in pitch so you won’t hear them, but they will cause headaches or migraines.
Some shops will play high pitched sounds to keep people from loitering out front, they are pitched so that children will hear it, but not adults.
It doesn’t end there though, electronics in your home will make high pitched tones. Fans can do so, your computers have fans. It isn’t just fans though, electronic components vibrate, vibration creates sound.
Televisions are bad for this and not just the old CRT units, though the CRT’s are notorious for causing headaches due to a sound that most will not hear. Your notebook too, or desktop computer can and will produce these tones, not through the speakers mind you, but the electronics inside. Note that this can happen even if the device is turned off, as there is still a trickle of power flowing into the unit.
Which of these tones can you hear?
Turn your volume down a bit, they can hurt.
When you or if you can not hear one, play the next one, see if you can feel it.