Blood pressure must be high enough to reach and flow around the organs, including the brain. A change in posture may also trigger a headache due to low blood pressure. Experiencing some forms of ...

A 1.7-gram head-mounted microscope, for the first time, enables dual-modal imaging with high spatiotemporal resolution. This ...

He continued, "In doing that, it not only stopped the bleeding and sealed off the bleeding, but also restored normal blood flow to the right side of Charlie's brain." After spending a medically ...