Gigi and Bella may be all the proof we need – but recent studies have underlined all the positive effects of sisterhood.
Yesterday, superstar model Bella Hadid helped her shoeless sister Gigi navigate the final march of the spring/summer 2018 Anna Sui runway at New York Fashion Week.
Gigi's sparkly, sky-high platform shoe came loose as she begun her second walk in the show, eventually coming off entirely.
She carried on, tiptoeing on one side, but Bella stepped in at the finale to support her sibling. The story of sisterly solidarity spread like wildfire, and will likely become one of the week's most memorable moments.
Side by side and separately, the sister duo continues to be an unstoppable force of influence in the fashion world.
Bella and Gigi may be proof sister support is a powerful force to reckoned with – but to firm up the facts, there have been multiple studies completed over time that underline the effect of sisterhood on our happiness, our optimism – and even our sense of strength and independence.
Compiled by Professor Tony Cassidy, from the University of Ulster and researchers from De Montfort University in Leicester, one 2009 study suggested that having a sister will ultimately serve to boost your overall mental health.
In a statement made at the study's unveiling, Prof. Cassidy said, “Sisters appear to encourage more open communication and cohesion in families. Emotional expression is fundamental to good psychological health and having sisters promotes this in families.”
As well as keeping us balanced with open lines of communication, the study also suggested that sisters helped us to be more autonomous and goal orientated.
Another study in the US, completed in 2010 by researchers at the Brigham Young University in Utah, proposed that sisters helped siblings avoid negative emotions.
According to that study, those of us with sisters were less likely than those without to indicate feeling lonely, unloved, guilt, self-conscious, or fearful.
The same study indicated that growing up with a sister makes you generally a nicer person, and that our sisters play a pivotal role the development of our generosity, sympathy, and kindness.