Shin Matsushita was born in Miyagi prefecture, Japan on 30 March 1904.
On her 110th birthday in 2014, Matsushita was still living independently with her dog. One week before her 111th birthday in 2015, she was exercising her legs since she had a femur fracture. She had several grandchildren, great-grandchildren and also great-great-grandchildren.
Matsushita was hospitalized at the end of May 2016 due to a bout of pneumonia and heart failure but was able to recuperate by June.
Matsushita lived in Sendai, Miyagi Prefecture. She celebrated her 115th birthday in March 2019, becoming the 11th Japanese person to do so. In June 2019, she was hospitalized for low blood oxygen levels but was discharged five days later. She was subsequently re-admitted to hospital but was discharged again in July.
Shin Matsushita died in Sendai, Miyagi Prefecture, Japan, on 27 August 2019 at the age of 115 years, 150 days.