| 100% | FMRI | 4 | Medical scan that measures brain activity by detecting changes in blood flow |
| 32% | EEG | 3 | Test that measures brain activity |
| 30% | EEG | 3 | Medical test that measures brain waves: Abbr. |
| 30% | MRI | 3 | Medical scan that's read by a radiologist: Abbr. |
| 28% | DOPPLER | 7 | The ultrasound that measures arterial blood flow |
| 24% | PICA | 4 | Largest branch of the vertebral blood flow mechanism that in part supplies blood to your cerebellum (abbr.) |
| 23% | BEMATIST | 8 | Extinct occupation in ancient Greece that involved measuring distances by counting one's steps |
| 23% | EEG | 3 | Brain activity scan (Abbr.) |
| 23% | BOA | 3 | Snake that kills its prey by restricting blood flow |
| 23% | SSE | 3 | Blood flows in ve___ls |
| 22% | MRI | 3 | Medical scan in a big tube: Abbr. |
| 22% | MRI | 3 | Medical scan done in a tube: Abbr. |
| 22% | MRIS | 4 | Scans that may involve dye injections, in brief |
| 22% | AMP | 3 | Unit that measures electron flow rate |
| 21% | ETHOS | 5 | Those changed in spirit |
| 21% | MRI | 3 | Medical scan often done in a large tube: Abbr. |
| 21% | MRIS | 4 | Hospital scans that are in 3D: Abbr. |
| 21% | ODOMETERS | 9 | Instruments that measure distance covered in cars |
| 21% | MENTALWORKOUT | 13 | Activity that exercises your brain |
| 21% | ENGRAMS | 7 | Brain changes that make memories |
| 21% | WORDSEARCH | 10 | Activity that requires scanning letters |
| 21% | EEG | 3 | Test to measure brain's electrical activity (abbr.) |
| 21% | ALBUMIN | 7 | Main protein in blood, produced by the liver |
| 21% | PLATELET | 8 | Component found in blood that aids with clotting |
| 21% | PLASMA | 6 | Liquid in blood that carries cells through veins |
| 21% | EEG | 3 | Brain scan ordered by neurologists: Abbr. |
| 21% | VIAL | 4 | Blood container in a medical lab |
| 21% | ALUMS | 5 | Those involved in after-school activities? |
| 21% | BABIES | 6 | Those in need of a change |
| 21% | VOODOO | 6 | "___ in my Blood," 2016 song by Massive Attack with a music video that features a woman being possessed by a hi-tech orb |