So sometimes goosebumps are just our body reacting to our brain signals of intense emotions. When we feel things like love or fear or sadness, the hypothalamus sends a signal to our body that produces adrenaline in our blood. The signal triggers the erector pelli muscles to contract. And then we have goosebumps, caused by emotion. The sudden adrenaline rush may also cause some sweaty palms, tears, increased blood pressure, or even the shivers that shiver down your spine goes by several different names