Powershell loop values of multiple variable in array

Question

Trying to output multiple variables here in one and then email. I keep getting one for obvious reason that its not storing all values. Can you please help?

foreach ($computer in $computer_list)
     {
   # Write-Host $computer 
     $file = Get-childItem "\\$computer\c$\Users\test.log" -Include  *log 
     $size = $file.Length/1gb
    
    for ($i=0;$i -lt $computer.ReadCount; $i++)
    {
    
    $body += "$computer"
    $body += "$file"
    $body += "$size"
    }