Work-related Headaches’ causes: Vibration
Vibration is really noise that we feel rather than hear. Vibration acts directly on the muscles and joints, irritating them, and if there is a pre-existing joint or muscle injury, vibration is likely to make it much worse. The frequency of the vibration is critical; certain frequencies are notorious for causing problems, such as low frequency - seven cycles (pulses) per second - which is quite literally gut-wrenching in high power. It's whether individual vibrations are just at the right (or wrong) frequency that determines whether they will cause trouble or not.
Vibration works its damage by setting the tissues in motion with ever-increasing force. It tends to come from machinery, but don't forget the vibration and jolting that can come from riding vehicles such as tractors and landrovers over rough ground. Normally these are provided with well-sprung seats, but if you are using vehicles off-road, do be aware of the amount of vibration and knocks that you can get. Being a passenger or a pilot in a helicopter, or in a low-flying light aircraft can also give you considerable vibration. Surprisingly, blows to the pelvis and seat can strain the neck considerably and headaches from neck joint injury and/or neck muscle tension can result.
Treatment is by avoiding vibration where possible. When this is impossible, reduce the amount of vibration transmitted through to your body. In particular make sure that your seat is well sprung. Cushions - especially air-filled rings - can damp down vibration and jolting very effectively. Thick gloves reduce the vibrations from hand held machinery. If you're doing a lot of running or walking on hard surfaces, cushion the effect on knees and spine by using footwear with resilient soles - for example, trainers.
*124\20\2*

Work-related Headaches

Work-related Headaches’ causes: light

Noise