As a social species, humans rely on a safe, secure social surrounding to survive and thrive,” wrote loneliness researchers Louise Hawkley and John Cacioppo. So, what is making us feel so isolated? Science may offer many answers to this question. Studies have shown that lonely people have more fear of negative evaluation and often engage in overly cautious social behaviors that perpetuate their social isolation. Ironically, social media has even been linked with increased feelings of social isolation among young people.