Radical 心
13 strokes
salty 咸 (556a) + heart 心 (161) = feel 感
This can be literal (to “feel”, “touch”) or metaphorical — “to be moved”, “be grateful”.
感到 (74) gǎndào to feel (e.g. happy)
感谢 (108) gǎnxiè to be grateful

“All that salty food was bad for your heart,” the doctor said. “But now you’ve been on that diet, how do you feel?” / Teddy had dressed up as Gandhi (to symbolize frugality and remind the patient that he should eat less salt).