Why Rejection Feels So Intense for Some—and What Science Says

Insights by Kathy Richardson, Assistant Professor of Clinical Mental Health Counseling, Lebanon Valley College

Rejection is a universal experience, but for some individuals, it can trigger an intense emotional response that feels overwhelming and difficult to control. Known as rejection sensitivity disorder (RSD), this heightened reaction to perceived or actual criticism, failure, or disapproval is gaining broader attention as researchers and clinicians work to better understand its underlying causes.

Often misunderstood as a personality flaw or emotional weakness, RSD is increasingly being recognized as a condition rooted in how the brain processes social and emotional cues. Dr. Kathy Richardson, Assistant Professor of Clinical Mental Health Counseling at Lebanon Valley College, explains that individuals with RSD may experience ordinary interactions-such as feedback from a supervisor or a perceived slight from a friend-as deeply distressing, sometimes leading to anxiety, withdrawal, or emotional outbursts.

"Rejection sensitivity disorder is frequently misunderstood as weakness or oversensitivity, but that framing misses what's actually happening in the brain," Richardson said.

Research suggests that these responses are not simply a matter of temperament. Studies have shown that individuals with RSD may exhibit increased brain activity when exposed to negative emotional stimuli, such as angry or critical tones of voice, compared to neutral or calm ones.

"There are real, observable differences in how the brain processes emotional information, especially when it comes to perceived rejection," Richardson explained.

Because of these heightened responses, individuals with RSD often develop coping mechanisms aimed at avoiding situations where rejection might occur. While these strategies may offer short-term relief, they can contribute to longer-term challenges. Patterns such as people-pleasing, perfectionism, or avoidance of new opportunities can limit personal and professional growth.

"People with RSD are often trying to protect themselves from emotional pain, but that can lead to unhealthy behavioral patterns like perfectionism or constantly seeking approval," Richardson said.

The language used to describe sensitivity can also shape how individuals understand themselves and how others perceive them. In many contexts, being labeled "sensitive" carries negative connotations, which can reinforce stigma and discourage open discussion.

"Sensitivity is often treated as an insult, but in this context, it reflects a heightened emotional processing system-not a character flaw," Richardson said.

While RSD has recently gained visibility on social media platforms, experts caution against viewing it as a trend or informal label. The phenomenon has been documented for decades, first identified in the 1960s by psychiatrist Dr. Paul Wender, who described similar patterns as "atypical depression." The term "rejection sensitivity disorder" was later introduced by Dr. William Dodson, who expanded on the concept and helped bring it into more contemporary clinical conversations.

"This is not a TikTok trend-it's something clinicians and researchers have been observing and studying for more than half a century," Richardson said.

As awareness of RSD grows, experts say continued research and informed conversations will be key to reducing stigma and helping individuals better understand their experiences.