Virtual Field - Trouble while calculating dynamically

Questions and Answers
2 
const { differenceInYears, parseISO } = require('date-fns');

module.exports = {
  afterFindMany(event) {
    event.result.forEach(profile => {
        if (profile.DateOfBirth) {
            profile.Age = calculateAge(profile.DateOfBirth);
        }
    });
},

  
};

function calculateAge(dateOfBirth) {
    const today = new Date();
    const birthDate = parseISO(dateOfBirth);
    return differenceInYears(today, birthDate);
  }

This code fixed my issue. But can i schedule this to run once every week without running on afterFindMany to reduce load on each fetch and just load only once every week