S.M.A.R.T shows high Load_Cycle_Count | Why and how to prevent the number from increaseing?

i just realized that **some of my HDD's have a huge Load_Cycle_Count** when reading out their S.M.A.R.T data. Some are short before failing and i am asking myself why this is the case and if there is anything i can do to prevent them from dying.

alex@ga-P55A-UD5:~$ sudo smartctl -a /dev/sdb
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-142-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (AF)
Device Model:     WDC WD10EARS-00Y5B1
[...]
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  4 Start_Stop_Count        0x0032   090   090   000    Old_age   Always       -       10281
  9 Power_On_Hours          0x0032   062   062   000    Old_age   Always       -       28456
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       611460

alex@ga-P55A-UD5:~$ sudo smartctl -a /dev/sdc
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-142-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green
Device Model:     WDC WD6400AADS-00M2B0
[...]
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  4 Start_Stop_Count        0x0032   093   093   000    Old_age   Always       -       7615
  9 Power_On_Hours          0x0032   057   057   000    Old_age   Always       -       31743
193 Load_Cycle_Count        0x0032   053   053   000    Old_age   Always       -       442121

alex@silent-ssd:~$ sudo smartctl -a /dev/sdd
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-142-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Green
Device Model:     WDC WD20EARX-00PASB0
[...]
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   098   098   000    Old_age   Always       -       2477
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       11176
193 Load_Cycle_Count        0x0032   181   181   000    Old_age   Always       -       59646